If the latter, then, again, a lot of people disagreeing with you isn't generally good evidence of being correct. You might be correct, but the downvotes aren't the thing that proves it. Personally, I'd have a think about why.
If it's the former, from what I've seen here comments get removed for tone or being off-topic, not for disagreement.
I don't count mere downvotes as "flagging", not the least because I want to think words still have meaning.
[1]: https://cdn.discordapp.com/attachments/747297210613498216/11...
I think that's what the problem is. The post in the screenshot is unnecessarily combative. It's not conducive to good discussion. It doesn't have anything to do with beliefs, it's just picking a fight. Change 'right' to 'left' or whatever group and it would've been flagged just the same.
If I thought the other person just wanted a fight, I'd ignore them. If I thought a good discussion might be had I'd go something like
"I think X and Y is good evidence of A. Why do you think that isn't the case?"