There’s a lot of dog whistles in these TERF/fascist-lite spaces, but one of the early items JKR advocated for was sending trans women to men’s prisons. You should be able to look this up, it’s well known. Would you not agree that that is wishing harm and/or death on trans women?
I’m sure there are plenty more dog whistles that have happened after that one that I’m not versed in, but hopefully that gives you a jumping off point in your fact checking. I’d recommend videos by Shaun, Jesse Gender, and ContraPoints if you are interested in more compilations and perspectives.
[Paul Robalino voice] It wouldn’t be a problem because it would feel really good, actually