The mentalness of the philosophy is matched and exceeded, by watching it, as an outsider, achieve social hegemony.
So, if like me, you irreversibly pulled away from Christianity as a teen, never to contemplate following a new movement or join a new cult, find your place in a world of multiple choices and freedom to speak out against vested interests, and then view with growing horror as a new cult and "recieved wisdom" gains traction and then social saturation, especially in counter cultural movements like Metal, the concept, execution and capture complete, is like an out of body experience.
Metal...one of the artforms really proud to provide voices for many strands of thought, contrary to the groupthink of organised religion in late 60s society that it broke away from, now imposing the new stultifying groupthink.
Of course the trans and trans allies feel they're in the grand tradition of Metal's counter cultural kinship, and the naysayers like GCs are the new moralists, no different from the moralists in the 60s who said no to homosexuality, no to extramarital sex, no to anything not Christian.
Indeed, this is a big reason why so many atheists have taken to trans ideology, and why it actually is totally predictable the arts incl Metal has fallen to TRA.
The New Atheists and counter culturalists weren't really anti Christian, per se. They were anti moralist. It just so happened that the prevailing moralism until the dissolving of the churches influence was Christianity.
So, not so much anti Christian as anti Christian edicts. As Christianity fell from view, we had a couple of decades where a more egalitarian sharing of views was possible with no dominating strain. Let's call that the period of cultural diversity and free discourse of ideas and opinions.
But now a new set of post modern ideas have evolved, and because GCs oppose them, we're now conflated with Bible bashers as intolerant, inflexible, imposing one size fits all morals.
Ironic really, as the new accepted ideas demonstrate a moral force all their own.