"Silence is violence" is the most authoritarian argument possible: it forces you to voluntarily identify your side, even if you refuse to do so. There's a reason why voting is secret: because no one should be forced to suffer consequences for their ideas. Forcing people to out themselves is bad, and it's time to ostracize who does it (along with those who incite mob pressure to fire wrong-thinkers, or to ban speakers from public places)