Nah, the only people not grossed out are the people who have devoted their lives to their fetishes like troons do. So more your BDSM, adult baby, coomer sorts. And sure there's some of those in the LGB, moreso the G, but there's also a whole bunch of straight people in those categories, and of course every AGP who has let their fetish define their life. After all, he's getting his shit published by normal straight publications - not even restricted to a pile of rank troonery like Pink News.
Though honestly, I suspect it takes a Kevin Gibes level of fellow degeneracy to not at least privately think Valens is a narcissistic, sex-obsessed weirdo. But he has troon shielding and is obviously more than happy to call anyone who disagrees with him a bigot and try to ruin their life, plus controversy = clicks.
Tl;dr: not the average LGB, but yes to the average T.
Like I said, the average LGB might find his stuff distasteful to read because his fetishes are pretty rare.
But, they also wouldn't see anything wrong with his depravity (it's just not their cup of tea), and would agree it should be allowed in society and people who kinkshame or attempt to restrict sexual expression are the bigger problem. Most gays aren't into public ballsack inflation either but few will oppose exhibitionist events like the Folsom Street fair.
Narcissism, sex obsession, and general weirdness are also very common among LGBT. Valens' bundle of personality defects is pretty typical.