There is a difference between saying that it is illegal to fire a gun, and that it is illegal to fire a gun AT someone when you are not defending a life. But what
@Famine is getting at most likely is that your ability to express yourself does not preclude others from judging you based on how you express yourself and choosing not to associate with you, hire you, take you seriously, publish you, etc. etc... and of course you may get shouted down by far more people expressing themselves in the opposite direction.
Once again, it is legal in the US to belligerently call a black person the n-word, and rightly so, no word should be a crime in and of itself. That's how far we are from protecting transgender people from being called the wrong pronoun. And I'm very glad of that.