“But there is right to freedom of speech. When you deny that right, you allow yourself to be silenced when someone else has the power.”
They are the ones refusing to allow free speech or religion. They shout down, threaten, and vilify anyone who disagrees with them. They don’t play by the rules
Exactly, the truth is not allowed.
However, stopping them from speaking is doing exactly what they are doing. Overcome them with the truth, not with censorship.