I’m always baffled to how many people argue over the Internet, whether that be Facebook, Youtube, Reddit, or anywhere else. If your purpose is to change minds, the probability of that is pretty much nothing. In fact, I’ve never seen an online argument that ended with one side saying, “You know what? I was wrong all along. You’re right!”
The only time you should do it is if you are trying to practice your debate skills. But how many people actually do it for that purpose?
If you want to actually change minds in real life, you must have a great reputation so that people will listen to you. What another random person on the Internet thinks about climate change is meaningless.