The issue is perhaps that people who are invested in "culture war" stuff are incredibly hypersensitive to literally everything nowadays in a way they might not have been in, say, 1990. That's not to understate the level of bullshit that was around back then, but the situation now is so extreme that they'll be sent into a rage by the most minor inconsequential shit, and if they can't find anything, they'll construct something out of thin air.
I don't generally follow the outrage but from what I've seen, they almost always use close-ups of Kerrice Brooks in their thumbnails is revolting; even in this week's episode which I didn't enjoy, her performance carried a lot of it. She's giving by far the most Trek-like performance in the entire show thus far, she'd have fit perfectly into a show like Voyager, and yet she's the prime target for hate because... well, we know why.
That's not to tar all criticism with the same brush because I'm sure there's a lot of commentators who strongly dislike the show on entirely fair artistic grounds, and I myself think a lot of the Kurtzman era has been dire, but there definitely is a substantial number of right-wingers who don't give a shit about the show itself and are purely interested in Star Trek, and all other media, as nothing more than an aid to their increasingly-deranged, incredibly muddled sociopolitical views. TNG could come out today with zero changes and they'd set upon it in an instant.
My main hobby is videogames and it's happened in that scene too to a truly extraordinary degree; a great number of "gamers" don't even play games anymore, they just watch trailers looking for female or non-white characters and then the meltdowns commence.