Liberalism means Freedom to do what you want as much as possible. What exactly has that to do with racism?

This is idealism- describing things based on inconcrete and unfalsifiable concepts and not what can be empirically observed. Liberalism can be more accurately described as a series of power relations where the bourgeoisie have dictatorial control of almost all of the means of production, where intraclass and interclass conflict are mediated by a nominally democratic state.

A liberal is someone who advocates for the property relations that facilitate the extraction of wealth from "shitholes no one cares about" as you call it

Funny how "freedom to do what you want as much as possible" always refers exclusively to the oppressors like Zionist imperialists