I am pro free speech. You can spread lies, like these ads try to spread lies dangerous to people's health. I won't try to censor you.
Ummm, private citizens burning books (that they own) is an exercise of free speech. Only problematic if the state does it.
Evidence of you supporting government censorship is a few posts above. Not sure if you have a memory problem or if you're being Trump-like.
Or if the state enables private citizens to pressure public institutions to burn books they don't like.