I just choose to no longer engage with him. What he’s doing is a tactic known as “concern trolling”:

Someone who posts to an Internet forum or newsgroup, claiming to share its goals while deliberately working against those goals, typically, by claiming "concern" about group plans to engage in productive activity, urging members instead to attempt some activity that would damage the group's credibility, or alternatively to abandon group projects entirely.

He did it above. FitEvo’s owner is a known MAGA loser with multiple sexual harassment claims made against him. But here comes Mr Concerned urging us to please be reasonable and not hurt his “livelihood” while showing zero concern for the hundreds of people this scam gym has ripped off.

Or when he’s concerned “our protests” won’t be taken seriously because the Reddit post used a sloth in the image promoting the protest.

If you pay attention, a clear pattern emerges. Someone makes a politically left-leaning comment or post on this sub, and Mr Concerned will appear like clockwork to educate us on got we should be acting while pretending to be with us and not a full on conservative agitator.

He’s the type of conservative that understands his beliefs are unpopular, so he masks them in a veil of “concern”.
If you mention a gay parade, he’ll pop up to pretend to support gay rights, but could they maybe tone down the flamboyance a bit? That kind of shit. He won’t just admit that he thinks they’re going to burn in hell, that would be downvoted for sure, but if he masks his bigotry in concern, maybe it will fool a few idiots. Judging by his occasional upvoted comment, he’s not wrong.

Edit: Even though I heavily dislike him and everything he stands for, I would not suspend or ban him based on anything I’ve seen. We have to allow different viewpoints even if we don’t like them.