"...because a significant number women are getting their education and careers before they have children (or don't have them at all) are frightened that they are going to decline in number, and there won't be people to take care of them in their old age. These same people also don't want immigration or to face the horror that it could be a brown immigrant who cares for them in the nursing home. That's true whether they have children or not, because very very few people take care of aging parents or grandparents. The fear of little brown people as immigrants is just flat-out racism."
Maybe you should visit some nursing homes and tell me what you see. I see a lot of little brown immigrants looking after the old folks. Little brown immigrants who's jobs depend on keeping the old folks alive, whereas their slacker kids can't wait for the old folks to move on to their final reward, so they can redistribute the assets.
Who would you prefer to have looking after you when can't look after yourself anymore :-)
As far as racism goes, when little brown people are serving the needs of large white people, destiny has been fulfilled and the world is working as it should.