All you can do is force them to face their convictions. What happens after that is up to them. Just do what Tim Walz did to JD Vance when he asked about the election results, and bluntly ask the root question.

“Do you think migrants are less important than citizens? What about men vs. women? Or gay people vs. straight people? Or trans people vs. cisgender people?”

“Do you think that the government should force people to follow your religion? If the government picked a different religion than yours, would you just agree to follow it?”