Do you think that's the expressed intended reaction or an unintended result?

My guess is it would be difficult to find any piece of document where it states something along the lines of "The goal of this program is to make this country more appealing for illegal immigrants, by offering them extensive welfare and preferential job and tuition situations, especially over those of our citizens."

I think what's more likely is that you are citing unfortunate byproducts of an imperfect solution to a complicated problem. Not a "typical reaction."

I'm not an expert on these things, though.