It's a lay up on the jobs front.
Obama set the table for Trump on jobs and the economy. Obamacare---jobs killer. Obama energy regulations---jobs killer. All Trump needs to do is undue much of what Obama has wrought on the economic front and then stand back and let it happen.
Politically, everything else being equal [no major missteps in foreign policy] jobs and economic numbers should improve under Trump.
And when that happens, democrats are going to be in for a tough sell trying to talk voters into going back to Obama era of regulations.
Gender and identity politics have mercifully run their course every where but in the Hyper Blue precincts. Voters in the Rust Belt are over it. Especially, the proverbial angry white males who are sick of being told they are source of oppression.
Democrats can come back, but it won't be by doing what they've been doing. It's no longer 2012. The country has changed.