Beyond all the other reasons not to do it, free speech assaults always backfire: they transform bigots into martyrs.
Free speech rights means that government officials are barred from creating lists of approved and disapproved political ideas and then using the power of the state to enforce those preferences.
You can't cheer when political officials punish the expression of views you dislike and then expect to be taken seriously when you wrap yourself in the banner of free speech in order to protest state punishment of views you like and share.
It's always easy to get people to condemn threats to free speech when the speech being threatened is speech that they like. It's much more difficult to induce support for free speech rights when the speech being punished is speech they find repellent.