For decades the agricultural business welcomed the cheap labor of "illegals", just to identify one industry that thrives on cheap undocumented labor. We are all paying for the fact that for decades government did little to stop this. Now we are paying the price.
Actually Asians have surpassed Hispanics in immigration numbers.
Regardless of who has been President nothing rational has been done to stem the flow because cheap labor trumps Patriotism. Why did China go from a third world country in the fifties to a global power? Because we can make stuff for sale at WalMart cheaper in China than the U.S. and China got rich. The decision to move manufacturing to China was made by corporate decision makers of both political philosophies.