I'm Scottish, Welsh, and Scandinavian. No surprise due to viking conquest. I like my Scandinavian heritage though; I suppose that is literal Stockholm syndrome.
Mother: Xhosa with a negligible San ancestry(way way back)
Xhosa(basically who I identify with)
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San(cause of my red skin)
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Father: Xhosa with negligible South Indian ancestry + plus rumored Dutch(which I try to hide as much as possible)
South Indian(cause of my ridiculous hair and yeah weird Surname)
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As for harmful traits, I am an albinism carrier. I wouldn't call that harmful though.