It's a rather important distinction that the original accusation was made by a third party and to some degree went viral first. It changes the dynamics of the situation significantly, from "these people saw Tim Pool near this individual and assaulted him" (which is what your summary implied) to "these people believed an assertion on social media that some people caught in a photograph with Tim Pool and this individual were fascists and decided to assault them" - while assaulting them was bad in either case, what you got was basically the vigilante equivalent of SWATing.
The common ideology, as appears to be understood by the vast majority of FA users I've seen supporting Antifa-branded accounts (and given my history on staff I can pretty much guarantee I've seen a larger portion of that demographic than you have), is being outspoken about opposing fascism. You are conflating ideology with methods, and as long as the objectionable methods are not being advocated on FA, FA has no problem with the ideology. That is pretty much what FA's statement means, and the general underlying reasoning I see as being behind the decision.
Nope. Fictional content designed to communicate a message that "these ideologies are not okay"; I draw plenty of violent vent art, too, doesn't mean I am a proponent of literal violence. I find nazi-punching art incredibly tiresome, myself, but hey, if that's how they want to vent their anger and it works for them, that's their prerogative.
The "group" accounts based around anti-fascist ideology on FA are not engaging in promoting actual violence. Any individuals actually making statements encouraging violence are already having action taken against them. I've seen a number of Antifa-punching submissions and depictions of nazi violence, as well, and they aren't encouraging RL violence, either.
can you stop defending Antifa Mungo i my heart is actually racing with Anger
they are violent i have a friend who lost an eye to antifa simply because he was walking back from lunch in Uniform they defaced memorial to Vietnam vets with "this is a no Fascism zone" posters they tried to break into a military base causing a 6 hour lockdown
They have stabbed cops in the EU they have BOMBED places
the US branch of Antifa are more tame than the rest of the world but they are still domestic terrorists and you don't seem to understand their ideology they are criminals and thugs if you represent capitalism in any way be it a cop a soldier or a paramedic you are a "Nazi" if you do not confirm to their extremist communist views you are a "Nazi"
in the UK they are breaking into peoples homes who go on holiday and squatting because they don't believe in property ownership
do you understand Mungo
Antifa is the literal left version of a Nazi what they are doing is not opposing fascism they are committing it themselves