Perhaps it's something as simple as some folks not liking Trump, but still adhered to the republican philosophy

Occam's Razor is a useful tool when you want to eliminate some pointless speculation. A lot of Republicans still adhere to the Republican philosophy...Donald Trump does not.

A womanizer, a draft dodger, a former Democrat, an autocrat, a bully, and an all 'round jerk.

They fielded a horrible candidate in 2016 then won on a fluke. He was a lousy president who sowed division withe very word he spoke or tweeted, he endorsed violence against his political enemies and even within his own party.

I'm not sure why it surprises you that some Republicans didn't vote for him...

Good coffee, good weed, and time on my hands...