By the way, racism is a 20th century idea, you're the nu in this case. People have always been aware of the evolutionarily ingrained in-group preference, but it was never pathologized until a few decades ago.
Populations are placeholders for ideas(variance in political beliefs as well as religiosity are both around .4 heritable), want your ideas to succeed? Privilege Europeans above all so they have an easier time outbreeding what can only be viewed as your competition for resources.
Don't believe Europeans are the only ones who can be lolbertarians?
Look at exit polls and surveys.