Demographics have changed, and not in our favor.
And they’ll change again. Twice in the last 14 years election results have caused analysts to say that one party now had a “permanent majority” that would last at least 20 years, first time for the Dems and 4 years later for the GOP. The reality is the demographic don’t really change that much. There’s about 1/3 that are fairly hard right, 1/3 hard left, and the mushy middle. Sometimes the mushy middle look like they’ve changed character and are hard leaning in one direction, but in relatively short order they revert to form and hate the guys in charge.