"Nobody seems to give much of a shit because they're mostly not white."
Quit lying. You aren't in their heads, so you have no idea what they believe and why.
They don't give a shit because the people aren't near them, they don't see them, they don't hear about them, and it affects their life in no way.
Much like we don't care about the homeless in our own countries.
"world is run by leaders who are, for the most part, white supremacists."
Stop making normal human apathy into a SJW crusade against "muh racists".
Offensive and idiotic. Go look up Occam's razor.
Also, what would you call the rulers of places like South Africa? Black Supremacists?
Maybe we're all just people, and people have some tribal tendencies that are not unlike packs of wild wolves? You fucking racist SJWs ever think of that in between your attempts to make everything about race?
I swear, you liberal regressives are going to literally bring back the Nazis with your dumb-fuck communist "Anti-fa" army.
With all due respect, comrade.