It Still Remains Untouched: Let's talk about music

Hey you guys, I just felt like writing a new post.
At first, I'm going to tell you my favorited genres. Those are Metalcore, Industrial & Electroclash.
Further, I hate those 'I'm-so-f**king-hard-because-I-listen-to-real-Metal'-guys. Every time I talk to them and say, that I love Metalcore (Deathcore), they're all like: Uh, that's no music, girl. My music is better ... bla bla bla. Do they know how that sucks? >.> It's my problem that I like Metalcore and not theirs - by the way, where's the problem? I see no such thing here. I'd love to punch them in the face and just say: My business, not yours. Let me hear my music and I let you hear your stuff. Where's the problem? Is it just that Metalcore is a new movement and especially teens love it, because it imparts different ideals and the subjects of the lyrics is a bit different from the 'classic' metal? I don't get it. Please, somebody explain it to me.
It's nearly the same thing as the collective hatred against cyber goths a while back. It was new, some people didn't like it and that was it. Okay, you don't like it. Why being bothered by them any longer? Just let them mind their own business as they let you mind yours (it was pretty extreme here in Germany, don't know where all the hatred came from ...).

Okay, so here are a few examples. Bands & songs I love et cetera.
One last thing: I like every kind of music; I just prefere the above-named genres.