Primarily because Asians aren't receiving public benefits in large numbers and generally follow the law.

The Democrat dream is an army of illiterate non-English speaking Hispanics and savage negroes, who will never even consider voting any other way because they are dependent on the Democratic party for their very existence. They would love to fold Arabs into that army as well, but the fact that the Muslim religion basically preaches their destruction is a complication.

It's one of the things I hate most about their party. Rather than work for the betterment of this country and win our votes honestly, they're willing to destroy America and replace its population with literal serfs in order to cement their power.