Yeah sexism is way worse than racism (though they're both horribly evil of course). That's half the world hating on half the world, not just several smaller chunks hating each other in every direction.
The only reason Asian women make more money than white women is because everybody's racist and assumes that all Asians are smart and studious tech whizzes and that all Asian women are silent and subservient, so they make good workers. Racism and sexism are a deadly combo. And of course, most white managers see Asian women as more exotic, so they're more welcome in the workplace.