Instead, argue as if you're trying to convince the bored reader who has climbed down through the comments (for some reason), who has found value in this discourse and is trying to get more or better perspectives. That is someone you can convince of your position.
It's been a lot easier to engage in text discourse ever since I had that epiphany, because instead of taking every bait and trying to correct every wrong, I'm only engaging with folks arguing with data, with perspective, with good faith more often than not. That leads to better outcomes, I believe, instead of just contributing to so much noise.
1. Most arguments come down to defining words, even if you may not realise it.
2. Don't follow rabbitholes. Don't deviate from arguing your core premise.
3. You're not trying to prove the other person wrong, you're trying to find the truth.
On #1 for example; I watched a video of a conservative arguing liberals (or something) about a few premises, including "gay marriage does not exist". It was immediately clear to me, but apparently not to the people in the video, that this guy has a different definition of "marriage" to me. That's the breadth of the disagreement. That's all people should've argued with him about. But not one person did. Even when he described his definition of marriage, and how his premise comes about from that definition, everybody immediately became sidetracked. There's just no chance of finding common ground behaving like that.
4. It's not that unlikely that you are arguing with an actual child who has picked up enough terminology to be dangerous but completely lacks any deeper understanding.
I think it's part of being human.
I invite a brain specialist to step in here and comment which regions of the brain compelled us to agree with those whom we also feel we "need".
EDIT: .. cut to ncr100 proceeding to open youtube.com ...
https://www.reddit.com/r/nosurf/comments/1693ky4/you_should_...
Not very healthy - it's like a never ending feed of "someone is wrong on the Internet".
For the record: "right" here is roughly equivalent with the political position of the US Democratic party.
Unfortunately these subreddits are not very balanced, so when I do take a break, I see that the other side "wins" to a noticeably larger degree. Again, small country.