Don’t count on it. The pendulum will never stop swinging.
People were talking that way 50 years ago, but it doesn't work that way.
Parties alternate in the White House every 8 years or so on average.
There's a 15-20 year or so cycle of conservativism and liberalism/progressivism.
But there's a lot going on outside politics that makes it hard to undo changes in the country.