It’s actually perfectly simple and not contradictory as long as you don’t conflate basic rights and absolute impunity.

Having the right to say something abhorrent without the government punishing you for it ≠ having the privilege to say whatever you want and face no consequences.

Conflating the two to the point of censoring dissent is how fascism, anarcho-capitalism, Stalinism, and other inherently abusive ideologies that look attractive to some when not closely examined take root and thrive.