Do you support (or at least not want the government to ban) libel/slander?
What about child pornography?
Should I be able to run into an airport and yell "BOMB"?
Perjury? Should it be illegal to lie in court?
I also assume that if I had your real name, address, and SSN that you think it should be legal for me to post that info in this comment ('doxxing')?
Now, the thing is, I mostly agree with you. However, it's plainly ridiculous to claim that someone has to fully support/oppose free speech. Make a real argument rather than just claim your opponent's position doesn't exist in order to strawman their position as 'not suporting freedom of speech and expression'.