I agree that people don't like being called out for their views (on race, lgbtq, women, whatever). They would rather be left to believe what they believe in peace and not face the disapprobation of others.

Calling individuals may even further radicalize them, as you say. I am not convinced on this point, I sort of think their mind is not changing either way, but maybe I am wrong.

What I am sure of is, it is not the responsibility of people whose rights are being taken away to be polite to their oppressors for the sake of rhetorical strategy.