1) I have (and continue) to take action trying to meet foreign women in Australia. It was just an incorrect assumption on your part that I am not taking action.
Most of that action comes in the form of cold approaching with the occasional social circle and work situations thrown into the mix. Despite the fact that I live in an international city (Sydney) with many foreigners on a red pill forum such as this we all understand (or should at least) how the dynamics change when a foreign woman arrives in a western country. SMV is always a relative concept based on what other options are available around you and supply and demand, etc. A woman from Brazil, Colombia, Belarus, Ukraine, Argentina, Italy etc that would be considered a 6 in her own country will generally be considered a 7 or even 7.5 in Australia.
Meanwhile in Australia as a man if you are considered to have an SMV of 5 in a lot of other countries you would be considered a 6 or a 6.5. Generally as a man you can get a 1 - 2 point arbitrage off the bat by going to a country where the dating market is more favorable. That is a huge difference. I have seen first hand for example when I was in Colombia I could get dates with young attractive women whereas in Australia most of the Colombian girls I approached I struggled to get dates with them. The mere fact these foreign women are in Australia where they no longer need your money as much and they are getting thirsted over by higher value men means that they are harder to obtain. In the old Rooshv forum Roosh originally even spoke about the busted dudes test. I know you are well traveled and have a solid understanding of game, so this point should be fairly obvious to you to the extent that I wonder if you are being intellectually dishonest or have ulterior motives by even raising such a nonsensical argument.
Also there is self selection bias. A foreign woman that leaves her family to go alone and live in a foreign country for a few years is far less likely to be a traditional/conservative girl. So to find a more traditional girl its best to go to the source.
Compounding all of the above problems is the tendency of certain foreigner groups to stick to their own community when arriving in a foreign country and there are various reasons for this which I do not need to go into right now. But its quite common for example for a Colombian or Brazilian or Italian student/backpacker, etc arriving in Australia to already have friends living here before she even arrives in the country. Then she arrives in Australia and lives in a share house where her friends are already living and guys from her own country are also living there. These guys plus male friends of her friends have social pre-selection and thus have a huge head start over you. I have met girls who on their first week of arriving in Australia already had their social calendar filled up with multiple invitations to barbecues, beach parties, etc. For this reason I have noticed that for example a Brazilian girl living in Sydney is far more likely to have a Brazilian boyfriend than an Australian boyfriend. And this is to say nothing of the women arriving in Australia who already have boyfriends (either back home or that they bring with them to Australia).
2) As you yourself noted age gap acceptance is often higher in non-western countries. In my personal experience in many Latin American countries age gap acceptance can go up to 20 years if the man is in good shape, has money, is intelligent and looks younger than his age and has sufficient local language fluency, etc. Generally when it starts getting to 25 or 30 year age gaps its usually a sugar daddy type relationship but 20 years is still socially acceptable. Now it doesn't happen often enough to impact the statistics (hence why it wasn't visible in your map) but it happens often enough to the extent where you do from time to time meet guys with girlfriends or wives which are 15 or 20 years younger than them and everyone accepts it as a normal relationship. I myself had some dates with girls 15 - 18 years younger in Colombia and it wasn't a "sugar daddy" relationship. Certain African and Asian countries age gap acceptance can even be as high as 30 years without being considered controversial (although still generally an outlier).
3) There are many valid reasons for me (and other red pill men) to move overseas other than women. Cost of living is a major reason. If you have assets generating a decent amount of passive income then you can live comfortably in a low cost of living country as a retiree or semi-retiree rather than working full throttle like you must in the west. Also in low cost of living countries you can afford stuff like a cleaner, a maid, frequent taxi trips, massages, private tour guides to go hiking, etc that you often wouldn't be able to afford when living in the west. Lifestyle/culture. In a country like Australia you don't have the nice colonial towns and old town centres lined with rows of cafes in historic stone buildings, the vast array of cultural events (festivals/parades with traditional dresses and music, etc). Walking around the night markets late at night eating street food and socializing, etc The food is often better in non western countries, etc.
Western countries such as Australia are good for certain people. If you are a young family man who is married with two or more kids and have limited assets and you need a well paying job to support your family then a western country is probably best for your situation. Also if you are a young man trying to build your wealth/assets its usually (although not always) easier to accumulate the wealth in a western country. But for men in other life situations western countries are a far inferior choice. I would say that in general for the average western man who is single once you have enough wealth there is usually no reason to continue to live in the west unless you have family obligations (e.g. looking after elderly parents, etc).
4) What have I done in the last 7 years? I have focused primarily on increasing my wealth. My retirement fell behind schedule due to COVID related disruptions to my finances but I should be hopefully retired before the end of 2025. Wealth is the gateway to everything else. Wealth gives you the freedom to improve all aspects of your life but that of course depends on how motivated you are and how well you use your wealth as its only a tool. But for men wealth should be the first priority and once you have it you can work on the other aspects. When you have wealth you can afford to eat better, dress better, get a personal trainer, supplement more, get skincare treatments, and so on. So you can improve your looks. When you have wealth and don't have to work as much (or at all) and you have more time and money to learn other things (learn new languages, take up new martial arts, learn to hunt and farm, improve your cooking skills, etc). Wealth should be the building blocks for everything as a man. First focus on wealth then after you can get other things later on. Few men are capable enough to juggle many balls at once.
5) Nobody on this forum is suggesting that as a man having money alone is sufficient to get and keep a high quality woman. But as per my point above once you have the money it becomes easier to improve the other aspects of your life and become a well rounded man who has money, has skills in multiple areas, is in good shape, speaks multiple languages, etc.