That, too. The amnesty for illegals would get it all done in one big swoop- no having to wait for the buildup of legals and the legal immigration does provide for some acculturation time and some changes in political outlook.Amnesty avoids that by quickly swearing in an overwhelming Democrat majority before the newbies settle in to being Americans. Once they have that and total control of the government the Constitution is de facto and permanent no matter how much minds might change.
CA is the canary in the coal mine. The demographics of America will look like CA by 2050. More and more states are turning purple, e.g., VA, CO, NV, and FL, with more on the way like NC. It has been going on for decades. We are being colonized by the Third World.