Why are some people nancy"s about music today?

Not all people, but damn Lady gaga, Lil wayne, Justin Beaver. Com on. What happened to when music made out of angst and the people who wrote the music had real problems, and the music had some balls and manhood in it. Like Metallica, Hendrix, Floyd, Beatles,Zepplin,AC/DC,Nirvana,Guns nN' Roses, Chili Peppers,and Alice in Chains. Theres still some good rock stuff today. but a 16 yr old kid doesnt know **** about life. It's maby pamby B.S. music. There posers of music who are out to make money.Lil Wayne's a bi- tch my sister could kick his @ss, he's not a gansta, he's a poser. And Lady gaga it thinks it unique and great because it acts ecentric, the music still sucks. So my question is why do people fall for this crap, and why dont we have some better music today as we did in the 60's. 70"S and 90"s?