is it me or new rock artists ( such as avril, maroon 5, link, and so on

) don't have any ideea bout the real sound of rock? and i'm talkin' bout those values that gave birth to "ROCK"( as a word, a way of life and thinking): starting with led zep and deep purple, up to metallica, iron m, and the unique nirvana?
ps: don't u jump down my throat if u like lavigne!