That it is indeed. A relative recent problem too. By recent I mean 2 to 3 decades now.
Now, I will admit, electricians, low-voltage, fitters, plumbers, and certain other highly trained trades are still predominantly anglo or non-hispanic. The masons, the carpenters, the finishers and the operators are all going the way that the painters, landscapers, floor layers and the other finish trades went.
Iron Workers for structural are still non-hispanic, but the rod busters are not in nearly as many areas.
Hard work in weather variable and impacted conditions with dangerous conditions has always had a draw to immigrants due to the high pay relative to other jobs. That being said, the immigrants are augmented because they work legally in commercial construction while the illegals do a lot of residential work to learn the trade and some of the language.