Hypothetically you could start by explaining to me that you were actually joking in your original post. You could say tha a person switching beliefs on a topic does not say anything regarding that person's biological traits, or about which beliefs are correct or incorrect.

I clearly didn't get your joke, seeing how I'm going off on how a person's thoughts and feelings are entirely determined by what biological characteristics they have access to, through themselves or through their partners. I think it would be really helpful if someone could explain that's not actually how the world works to me.

Does that help?