NATO's plan is failing, badly, your assessment of the situation is very poor. It is their plan which has proven to be delusional, while Russia's response has been shrewd. 2 years into this conflict and NATO still can't produce shells in sufficient numbers, while the Russian MIC has been scaling up massively its production of shells, tanks, and drones/missiles of all type.
NATOs objective of regime change and the dismantling of Russia is a pipe dream, Putin's position has been reinforced with this war, both domestically and abroad, outside the West. Russia's economy is thriving, they are reaping dividends from foreign firms being replaced by domestic products, and from Russian capital being repatriated as the oligarchs can no longer invest abroad.
Russia has been waging this war on second gear, while preserving its economy and limiting its military losses, which have been around 90k KIAs vs about 7x as much for Ukraine. With a couple of exceptions (early assaults on Vulhedar), Russia hasn't been doing "human wave attacks", this is a NAFO-level talking point, it is the Ukrainians who have been doing that all along, especially in their offensive on the Surovikin line.
Ukraine is losing the war of attrition, their positions across the front are shaky. They don't have a pool of 6 million men, their population today is down to around 18 million and skews heavily towards older people as a majority of their young men have bailed.
Russia will be in a position to demilitarize Ukraine, either via negotiation next year, or on the frontlines.