Yes, you can speak against freedom of speech, that just isn't what's going on here. Saying "I don't want to be associated with a company that is associated with

Yes, you can speak against freedom of speech, that just isn't what's going on here. Saying "I don't want to be associated with a company that is associated with this person" is not "speaking against free speech". Saying "this person should be kept from speaking anywhere" would be speaking against free speech, but that's not what's going on here.