FDR served 3+ terms and the Truman finished one and had one of his own.
Anyway, 20 years of blue presidents, adds to the point. It must have seemed like the end times for Republican presidents.
But it wasn't.
Things change.
Add to that my Grandparents, on my Mother's side, who immigrated to this country when they were toddlers were FDR Dems. My Mom and her three siblings were lifelong Democrats. The next generation in my family, myself included, now mostly vote Republican.
Again, things change.
While I'm not optimistic, I certainly won't give up.