woah woah woah now. music taste is subjective. you can't say that someone's taste in music, or the music that a band produces is shit just because you think it is. i also can't see how you can make the argument that some modern bands are "copying" bands of the past. you could argue that they are influenced by other bands but saying that they copy them is pretty radical. did eric clapton copy the blues guitarists he was influenced by? no, he was influenced by them, he even said it in his autobiography. without bands and musicians like the who, the beatles, elvis presley, the beach boys, muddy waters, and many others a lot of the music that me and you and many other's alike listen to wouldn't exist.
not trying to bash you, i just enjoy reading and responding to good arguments. let people listen to their own music, and if you don't like it, keep listening to yours. (oh and by the way, i fucking love Deerhunter i don't care what you think haha)