All speech is not free speech

Right now Dump is signing a 'freedom of speech' Executive Order for college campuses. This is the crux of this whole Peterson thing. Does free speech mean you're free to say anything, even if it incites violence? I'm not saying Peterson does this, but some of the extreme people he defends in the name of free speech do. Btw, the Constitution does have exceptions to free speech, like inciting violence, making false statements, fighting words and offensive speech. This is exactly the kind of speech that the alt-right and Dumpsters spew. It is unconstitutional and needs to be challenged on those grounds.