I see a lot of responses here about this not being worth the time, who some people are just agitating and don’t actually listen, and about how you just can’t reason with some people. I have a few thoughts on those, bust first I think it’s really important to distinguish between people who believe weird things that are wrong (covid-19-Bill-Gates-microchips, flat earth, fake moon landing) and people who say things that are unacceptable (age old slanders of Jewish people, stereotypes about non-white people, gender essentialism). I used to take calls on a crisis hotline (e.g. suicidal thoughts). When someone threatened me, screamed at me, or said something racist, I would say, “I’m sorry but that’s unacceptable, if you keep doing that I’m going to end the call.” If someone’s behaviour is unacceptable, you let them know it’s unacceptable, you don’t gently persuade or debate. I’m guilty on this front, but I’m trying to get better.
But on the other stuff:
I think if this isn’t worth your time then it isn’t worth your time. I don’t mean that to say anything negative about anyone. We’re talking about putting serious time and energy into helping a single person. The idea you’d do this for someone who disagrees with you in youtube comments is absurd. But if for some reason it is worth your time, I think the advice here is good.
Regarding people who are 100% determined not to listen, there are plenty them. The article links to a list of warning signs you’re dealing with them. If someone moves the goalposts, don’t keep trying to score, just point out what happened and say you don’t have any interest in continuing. I think the “take it private” advice is a good way to root these people out (if for some reason you are really interested in doing so) as well, because it shows a well-meaning person you are well-meaning, but people looking for a soap box don’t get one from that.
Finally, if you are saying “you just can’t reason with some people” I think you are accidentally agreeing with the article. Debate, argument, reasoning… they don’t work for changing a person’s mind (I don’t mean this as universal, but people who will actually stop in the middle of a yelling argument and say, “Oh, you’re right” are few).