Yes, he is racist. But I won't say that white race were the original owners of US lands. I seem to recal there was native american people that suffered a genocide and now are being kept in reserves...
So you should be careful, because Elon and people like him might very weel think that genocide is another way to "preserve white race". After all, it is not only women they see as cattle and not human. And they seem to have problem with white women who happen to marry or date black men.