Without immigrants Democrats are a dead party in the not too distant future.
holy crap
True statement, even today they would be a dead party without the immigrant vote.
Of course, this assumes that their policies and visions wouldn't change. That is unrealistic, but actually the whole point. Without all these immigrants this party would have to act sane, and as we increase the number of 3rd world immigrants they and America in general will become progressively insane.
And this has nothing to do with the fact that you are mixed race and appear sane. Don't confuse your personal experiences with the general trends.