I avoided speaking before, but RATM is not what I associate with metal music.

I didn't want to gatekeep what others view it as, but "trve" metal music is still made in basements and garages by people with that are as far from capitalist consumption as you can get. Look at Encyclopedia Metallum, there are tens of new releases every day, and most of them barely get listeners - even when released on free/public places like Bandcamp. You can't reduce an entire subculture to its mainstream offshoots.