Though you really need the ability to stay calm and collected. I once tried to talk with a childhood friend who became a hardcore christian and nationalist in the meantime, and I just couldn't believe the things I heard.

When I asked him why would the bible be a definitive source of whatever, he said "You can only have one truth, and if you live by the bible you know it to be true, so it is the truth". There were so many things wrong with that line of thought, my brain received a ddos attack and had to reboot.

Same thing for homosexuals. He, in a very very creepy way I must say, told an entire story of how normal men who are sexual deviants eventually get tired of women because they need to do increasingly more sickening things, and then move on to men. That's how men become gay.
How the hell do you reply to someone who just completely made up a story and believes in it? When I eventually asked how is the Netherlands not burning to the ground when they are tolerant, he actually said "Not yet". So, if any Dutch person is reading this, better brace for gay armageddon or something. I just can't figure out what to say to someone who literally spends 10 mins saying nothing. I eventually stopped interacting with him because I just don't have the energy (this was just an example, I had dozens of interactions like that with him)

Or when a colleague said that the Ukranian civilians were happy when the Russians came to save them. My head temperature increased 10 degrees and I just turned around and left. You really need special skills to talk to people like that, which I sadly lack