[John23832]

Payment processors, webhosts, etc (I assume you're alluding a lot of the alt-right sights being removed from those platforms) have in practice refused to serve customers that expose them to legal culpability. There's a clear difference.

Yes. Bake the cake. The only legal culpability is to NOT do so.

[core-questions]

What legal culpability do they have accepting payments for organizations that run websites that allow people to exercise their constitutionally protected rights to free speech?