Typical article from a left leaning perspective. People that question the unchecked migration of low skilled third world immigrants are of lower education and it's all race based anyway. In other words the usual leftist default position in any debate.
Lost to them is the fact that the homegrown population is being forced to fund it's own displacement through a massive welfare state, an accommodating educational system, and open to all medical services. The average American can see no benefit in their own life and in fact feel a sense of injustice when they see their taxes supporting millions of new people, many of whom who broke the law by coming here.
There is a feeling that the society that was built by previous generations is being handed over without a shot being fired. That is not to say that immigrants have nothing to offer. It is to say that the privilege of living in this country comes with a price and it should be for the benefit of citizens already here.