Censorship of speech is a powerful tool. Why, if you have the true conviction of your beliefs, would you fight with one hand behind your back?

Yes, but have you considered the outcome of everyone doing this?

Moreover, I’ve seen no evidence in my lifetime that letting my ideological opponents speak leads to positive results.

Mmmmm, yes. All ideological opponents should be silenced. This is clearly the way.

Seriously, if this is what you believe then you are clearly stating that you have no interest in a Free Society. You are literally placing yourself in the same group with every other Tyrant, Authoritarian, and Fascists who needs to be resisted.

Free Societies must tolerate dissent, it is a foundational requirement.