They don't have the baggage of all the atrocities of the past, they aren't overtly racist on principle, and they have no qualms taking advantage or the situation and participating in the corruption and exploitation. How is that surprising?
Are you saying that because you have some sort of evidence of their highly egalitarian nature, or because "They aren't Americans/Western Europeans, therefore they can't possibly be racist."?
If it's the former, I've heard an awful lot of complaints from non-Han in China about racism, and I'd be curious how you reconcile that with your statement.
The temporary halt to the power struggle over mainland China was just a self preservation tactic on the part of both parties.