Antifa stands for 
Anti-
facist, if you appose fascism (which I assume most people would, especially in Islam) then you are antifa by virtue of binary choosing.
As with feminism I'd also say no, nothing haram about women wanting an equal role amongst society and being free from discrimination or harassment. 
Same with BLM, I know this goes against the grain here but systemic racism and police brutality is indeed real and well documented. It has taken countless lives 
even Muslim ones, so I don't see why supporting the only prominent voice and movement against this type of injustice would be wrongful.
You could only make the case for LGBT. And Biden who'll still be blowing up Syrian children.