And why is that. If the argument is that white fans love the Stones/Zep/Elvis etc while pretending like they created rock, your argument is invalid considering those same white people love Muddy Waters/JLH/etc.
Music doesn't belong to anyone exclusively for christs sake. The British Invasion was inspired by black American music, everyone knows that. But it was also inspired by other forms of American music, including Appalachian - which is basically cac music.
BTW who created metal?
The irony in your last statement us that you dont know a group of black guys were the ones to create metal. Your point fell apart