im sorry dude,i just dont get it...

why a lot of nowdays kids claimed that metalcore/deathcore is a 'jahat' songs compare to blackmetal/grind and others harsh genre? and some of them beings such a 'true' metalcore follower but when asked about who is the pioneer of metalcore or where do music comes from,they keep avoiding to answer the question. i dont know about this and thats why i ask them but they didnt give me the answer. we all start from poseur but over the top is FUCK. yeah,i know that this already become a trend but can you just shut up and dont brag about it? another things that i hate the most is when i attend a gig,there will be packed with kids when there is metalcore/deathcore band performing. when other genre was on stage,only a bunch of kids that support them rather being the other bunch of kids that seat at the back of the room. why this happens? because other music such as punk rock 'tak masuk kepala'?