The naivety is assuming that 4 years of Trump would lead to the country accepting a progressive instead of someone even more centrist that Hillary.
It's the hardest thing for people on the far left or right to accept, but the vast majority of the country doesn't agree with them. They always say, if you would just nominate a true conservative/liberal we would win in a landslide. Literally the tea party and the far left are saying the same exact shit.
As much as both those groups hate centrists, they one day will have to grow up and realize that the majority of people in this country want someone in the center. They don't want a hardcore conservative or progressive.
Thems just facts.
All 4 years of Trump would do is allow Republicans to get rid of the ACA, make sure the Supreme court is stacked with conservatives for the next 30 years, and allow them to go even further in shifting wealth to the top 1 percent.
8 years of Reagan didn't bring about this progressive revolution they keep talking about. 8 years of Bush didn't either. 4 years of Trump won't.
A centrist Dem would run in 4 years and win the White House. Or a far left Dem would lose and give the country 4 more years of Trump.