What metal and horror movies are for me is entertainment, fun and an escape from reality. Something I enjoy and takes my mind off my everyday worries/problems.
I know that may not sound like much but our tastes are a big factor in what defines a person. I have very specific tastes that are unpopular. None of my friends are into metal or horror movies. I'm also one of those people who hates almost everything new. I can't talk about entertainment with anyone I know and I'm really nerdy about it.
Also I'd say that metal is masculine, not because of lyrics, or growled vocals etc but the distortion itself. Just think, something like Mariah Carey is obviously very feminine. Not that there aren't women into metal, of course there are but I've always seen it as kind of a guy thing like an 80s action movie. You know how men always have their own guy thing they are into be it sports, videogames etc Mine has always been metal.
As weird as this is, I find it really hard to bond with other guys if they're not into metal or horror. Not much to talk about with them. And all of my friends are into rap which I do not like at all. Most of them I met through drinking and drugs even though I am sober now.