@Bucky 2 - Trump voters
People who are pissed at politicians fucking them over probably should have voted for Trump. It makes perfect sense. First, he's not a politician, and secondly he was running against the most insider presidential candidate since Bush Sr.
Now I think you're right that those voters won't get the result they were hoping for - he's nominating capitalist cronies who are probably even 'cronier' than Clinton would have, so he's not only not draining the swamp he's adding a 25th layer of muck.
However, the way the independents who voted for him looked at it, a vote for Trump was a vote against the status quo, and gave them an outlet for their anger. It made them happy to reject Clinton, since they KNEW things wouldn't get better for them under her, and could at least HOPE things would get better for them under Trump.
They won't, of course, because Trump just used their anger for their votes, and now he's installing by far the wealthiest cabinet in history. And because they are longing for the days when the US was the manufacturer for the world, and no one in either party can bring them back because it is simply not possible to turn back that clock. Unless WW III happens and the world's manufacturing base is destroyed while the US is untouched, as happened during WW II...hopefully that is not Trump's secret plan!
The problem Trump and the republicans face in 2020 is that those voters will be even angrier, and that anger will turn towards Trump for failing to change anything. I'm sure he'll be full of excuses as to why, or claim he needs four more years to fully enact his plans, but it will be pretty hard to blame the democrats when the republicans control congress. Not that this will help democrats much, because that anger will quickly turn against them. If a strong third party candidate arrives in 2020 or 2024, he has a very good shot of winning it all.
Biting the hand that feeds IT
