A twittering friend of E.D. proclaims "just being angry doesn't make you a feminist."
But being angry over sexism usually does.
But yeah, feminists can get angry over other stuff, like personal attacks. Not everything is about feminism.
What really separates the sexists from the non-sexists is this: those who dismiss women as "just angry women" if they display anger, over anything, are in the sexist camp.
And working with exploiters and creeps who send messages of sexual assault definitely puts your feminist cred into question.
When will you get a clue?