What you're describing is a real phenomenon but you're missing the part where it's creating actual political consequences that extend way beyond individual pile-ons. We're building a society where people are terrified to say anything online, where self-censorship is the default strategy, where nobody actually engages with challenging ideas because the risk-reward is too skewed.
I work in media and I see this constantly. Stories that need to be told but won't be because the author is worried about one bad-faith interpretation getting ratio'd into a million people thinking they're a monster. Young people joining institutions where the first rule is basically 'don't say anything that could be screenshot.' That's not a just society. That's a paranoid society.
You can believe both that (a) the person you knew faced disproportionate consequences AND (b) we've created a chilling effect where legitimate speech is suppressed because people are terrified. Those things are both true and they're both bad.
What gets me is that this used to be understood as a civil liberties issue. We used to care about protecting people's ability to be wrong in public. We understood that growth requires the freedom to fumble. Somewhere along the way, we decided that the perfect is the enemy of the good and opted for total information warfare instead.
I don't have the solution. But I know that a society where everyone is quiet because they're afraid isn't actually more just. It's just more controlled. And it's certainly not more kind.