Well that's ok.
People think that Dreadlocks are just a black thing and that any white people wearing them is now politically correctly termed as 'cultural appropriation'
In reality (because the USA Media Fake News, has no grasp of other nations Histories correctly). Many other races around the world have had 'Dreadlocks'.
From the wild men of the Tibetan plateau, to the Vikings of old.
So Heavy Metal may have originated from Northern Europe and Germany/Czech-Slovakia (as have other forms of Music) - but it's not to say that other parts of the world embrace and use it as well.
I remember seeing Ice T 'Bodycount' at the Hordern Pavillion many years ago - and he was very 'heavy on the metal'.
Rap they say is a Black American thing. You know, the sort of music sung by 'Politicians' - because its really just 'talking' not singing and I reckon old Johnny Tap the race-caller would have been an excellent 'Rapper'. Eminem, Vanilla Ice, Hilltop Hoods - white guys doing Rap.
Where something starts, isn't necessarily where it ends too.