The same thing is happening here --- and it's not just whites complaining --- many hispanic kids hate the foreign music --- they like rock and other American music if they're American --- many kids say they will leave town when they can --- and very many do just that. It's becoming just like Mexico with a lot of migration out going on --- and the only ones coming in are from Mexico.
I don't fault the radio station owners for following the money. Classic rock is a dying demographic.