First, the Kochs are Libertarians, not conservatives.
Second, Bill Clinton had a pragmatic streak, and did some good things amidst the overwhelming junk - albeit generally kicking and screaming before he tried to take credit for it.
Third, all of the candidates have serious flaws. There is going to be difference in relative importance assigned to such flaws - though I myself find there to be a huge difference between either of the particular Democrat candidates and any of the Republicans.
Fourth, even with Trump, it remains an open question as to which Trump he’d actually be. Some are much better than others.
The GOP is composed of at least 6 different factions of ideology under one roof just like the Democrats. But in teh end they all serve the oligarchy.