Nowhere GirlA movement or an idea isn't invalidated just because a relatively famous person associated with it was a dickbag. It's inevitable that every movement has dickbags in it, taking advantage of whatever power or status they have been given because of it.
You should always cherish principles over figureheads because figureheads will let you down eventually and you have to be prepared to throw them away.
If a movement can be undone by a single person's failures then it wasn't a movement, it was a cult of personality.
Even the Trump regime has discovered that there is no Great Satan of Antifa for them to humiliate, arrest, and kill in order to stop stuff like anti-ICE protests.