I’m curious, did this actually happen? What exactly are you referring to?
I'm combining two cases off the top of my head and exaggerating one of them that's relevant to this forum. I'm going to recount one of them here from memory, but it's likely many other forum members know the story much better than I do because I didn't hear of Roosh until a few years later.
In 2016 (or was it '15?), the founder of the forum from which this forum originated, RooshV, was made the most infamous man in the Anglosphere because he published a satirical article about preventing rape by legalizing it on private property. This was in response to women claiming they were raped after getting drunk and having consensual sex at men's houses, dorms, etc., and then making false accusations that ruined men's lives. Roosh was also organizing IRL meet-ups for his followers in many cities around the world.
The frenzy of hatred against him was so great that in response to a rumor that Roosh was going to use a boat to land in Australia, their navy was literally sent to patrol the suspected area on ingress. The mayors of Toronto and Montreal declared they would not allow Roosh into Canada.
During this time, both Roosh's divorced parents' addresses were put into the public domain by rags like the Daily Mail, which attracted visible protestors, but more importantly there is a well-known pattern of violence from leftists in these situations.
Roosh had to hire security for his parents and himself for a week or two until he left the country and the attention died down.
Unlike my semi-fictional example, his parents were in good health and never harmed.
The other case I was referring to is from Australia and the National Socialist Network (NSN), a pro-white political activist group whose leaders (Tom Sewell, Joel Davis, Jacob Hersant) have been smeared as White supremacists by the press and physically attacked by antifa in public and, after a paid agent/writer infiltrated and doxxed one of their prominent members who does much of their fitness training, Tim Lutze, his house and car were hit with multiple Molotov cocktails in the middle of the night, I believe on Christmas Eve or thereabouts, while he, his wife, and their children slept inside.
His car was destroyed and his fence burned down, but thank God his house did not catch fire as one of the Molotovs failed to ignite and was left intact lying in the front yard.
The police refused to investigate but, when pressed, some special branch of them came to Lutze' house in a group so they could check a box, but also refused to investigate. They said to the woman who answered the door they were afraid to enter the victims' house because some of the victims' friends were there (in order to console them, as expected) and the coppers were too scared to come inside and talk to them.
The cops demanded everyone but the Lutze's leave in order for them to remain and take a statement and they wouldn't even look at the damage and evidence outside, but left without doing a thing since the Lutze's refused the police demand to kick out their friends in their time of need.
Here's another example off the top of my head, but if I began googling I could go on for days:
During the initial BLM riots in the last week of May 2020, following the death of felon and self-overdosed fentanyl eater George Floyd, a right-leaning journalist named Cassandra Fairbanks (she's married now & named MacDonald), who worked for non-MSM sources like Gateway Pundit, was prominently tweeting every day in order to counter the nonsense coming from the MSM about "mostly peaceful" protests.
Unbeknownst to her, Twitter, like all of silicon valley and social media, is part of the revolutionary hive-mind and provides intel to antifa by leaking passwords so that DM's can be read by leftist agitators and their goon squad, who visited Cassandra's house in Washington, D.C. around midnight, and then terrorized her and her small children by shooting fireworks at her windows for about an hour, which she recorded on video and posted on Twitter.
Fortunately for Cassandra, she was not injured by the attempted arson and was able to move to a safer and undisclosed location within a week.