I think history is a pendulum, eventually the libertines will take it too far, then the pendulum will shift back the other way......rinse.....lather.....repeat.
Endless mass immigration and replacement by not only new voters, but voters different from the established voters and citizens that are involved in a generations long pendulum, means that there are no pendulums.
America is never going to be what it used to be at any time during it's first 200 years, ever. We will always be something totally new and unlike America, just as we already are.
Already the democrats and the left don't even bother to pretend that they are still connected to 1960 America and before or that they need to address their base in terms and language of America, and tradition, and patriotism.