I agree with this but hear me out: most heavy metal is basically pop music already.
12-bar-blues structure, lots of big hooky choruses, songs that are generally 3:30-4 minutes long and almost always in 4/4 or some other meter that's easy to follow, etc. even a lot of extreme metal is structured this way.
it's fine! pop music is fine! pop music can also be incredibly sophisticated, which artists like Kate Bush, Stevie Wonder, Scott Walker and like a million j-pop songwriters have been proving for decades.
