The article is ambiguous, but I guess those organising the union were taking the side of leaving the project up? Or is the union demanding total freedom of speech in the terms of service? I'm guessing not.

Doesn't that bother you, at least a little bit? How can whether or not to leave up "always punch nazis" be the union's signature issue? Unions are meant to fight for the common man against the elites.

alwayspunchnazis.com has a cartoon of the US President being punched in the face at the top of it, and every article on that website calls the Republicans Nazis. Given how many ordinary working class Americans voted for Trump, painting them all as Nazis and then insisting that such a fundraise remains live would seem to be the opposite of what unions historically stood for.