Well I wouldn't call it a myth because it's actually true.

Plus the Asian Americans grouping actually consists of dozen of different origins, so viewing them as just one model minority is quite deceiving when we're actually talking about a very diverse group.

And perhaps it's not an argument against racism, but I don't see why it's not an argument against your claim that racism is the root cause of inequality when you have multiple racial groups achieving financial success.

And aren't non-hispanic whites becoming a minority fairly soon anyway?

And just to clarify, I'm believe racism exists and is a problem, but I'm not sure that's the main cause of inequality.