How Music Is Corrupt or Not...

Many people say metal music is just a collection of random noises mixed with people screaming off the top of their lungs screaming about murder and killing people.  Obviously, people who say that are the ones who didn't even bother to look at the lyrics or see the music sheet to see what it really is about.  Unlike metal, I find rap to not only be corrupt, but not even appealing to a musical sense.  I've looked and listened to multiple rap songs and every single one is exactly alike.  The lyrics are only about sex, drugs, shooting people, and how much money they have.  Know I don't know about you but to me there is no meaning or even reason to have rap music around.  There is also absolutely no musical talent anyway.  Metal music has some of the most impossible guitar and drums in the songs where as rap there is only one person talking into a microphone while someone plays on a computer.