I had a multi-week long argument with someone on Reddit who was convinced that racism is irrelevant and/or doesn't exist because it's a distraction from class warfare or something.
I argued that yes, the rich are screwing us over, but racism still exists and is bad and you shouldn't be racist.
They made responses that were at least 3x as long as mine. They didn't really ever say anything new, except to say that my points were wrong because class warfare. After they went on a rant in response to my comment to the effect of "it's still not nice to pretend racism doesn't exist", I lost hope with this person.
I started replying to them by mentioning something they said, then followed it up by copy-pasting some of my previous comments to them. I didn't even read their essays. I started pawning off my replies to ChatGPT, and they'd reply every time. Unless they were also using an LLM and telling it to include typos and stuff, it looked like they were still vehemently arguing with me/ChatGPT.
After a few weeks of almost daily replies, I gave a two-sentence reply where I admitted that I wasn't even reading their replies because I thought their opinion was nonsense and the "conversation" had been going nowhere.
I didn't get a reply to that comment.