Rock should be something you can actually listen to, something you can actually hear the guitar melodies in (i.e. not mindless shredding), something that was made with sufficient emotion and talent.
All these new bands and genres are an abomination, and the songs they make are just so the high and drunk band members can get rid of their extra energy easily, and these have no soul, no substance. So no, rock shouldn't be like that. Rock should be like...
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YEEEEEEEAAAAAAAAAAAHHHHH!!!
http://www.youtube.com/watch?v=_jz56y15ZOI
TL;DR: All of you have terrible taste in rock (except Kenshiro).