False allegations of rape, sexual assault, and "abuse"

I grew up in very far left activist groups, and in those groups I have seen many false allegations of rape and sexual assault made against men.

Often, these allegations would be made following a bad breakup. If a woman was upset about having to see her ex at organizing meetings, bars, venues, or even just on her friend's social media feeds, all she had to do was insinuate her partner was "abusive," and that was enough to mobilize people to completely wreck the reputation and social standing of her ex.

The consequences of being accused ranged from losing all or most of his friends, to being physically attacked. Women would place posters of their ex around his work calling him an abuser. They would call their bosses, families, key their cars, glue their locks shut. People would literally have to move away to new cities - but even then, their exes would email organizers in the city they moved to.

How many of you have been falsely accused of rape or sexual assault? How many of you have had a friend, family member, or coworker falsely accused? Could you share some of your stories?

Incidentally, if you haven't seen this youtube channel yet, I highly recommend you check them out - it's the Canadian law firm Neuberger and Partners LLP. They frequently cover real court cases of false accusations:
https://www.youtube.com/watch?v=6uOp1uoFxlI