They (not Trump of course) had to walk it back when it turned out not to be true.
Is there some outside groups posing as others, possibly, but to blame a majority of problems on them is just BS.
I see a lot of mischaracterization of what is a category, not a group. From what I can tell antifa is anti-fascism, and somewhat characterized by people willing to take direct action.
It’s funny to me that now they are a target, people are trying to play down their involvement in the political landscape the past few years.
I’ve watched them shut down speech, aggressively block events from happening, attack people in MAGA hats, there is so much hate pouring out of them that they are more fascist than anti-fascist.