Although it had many bumps, it eventually worked pretty well for Republicans to do it to Obama...
Let's recap how well it's worked out against Obama.
1.) The GOP leadership ended up being couped from the Tea Party and forced to submit to the most extreme parts of the GOP base who are pretty wild with rage. Trump stormed in, seized control of a very unwilling party, and then ...
2.) They couldn't win the popular vote.
3.) The mob that was galvanized by the 100% nonstop attacks on Obama have tasted victory. They will not believe in compromise which will ...
4.) Lead to some massive clusterbullpuckey.
a.) Corollary to this. Given their massive demonization of Obama, the GOP have alienated at least 48% of the country who liked Obama and voted for Clinton. Including some of the fastest growing demographics in the country. So, they have very little margin for error.
Do you really think this is an optimal outcome for the Democrats to emulate?
Oh yes - it didn't work out against Bush, because crucially, the Democrats became intellectually lazy and relied on anti-Bush sentiment to get to the White House. "Hope and change" was the motto of 2008, and it is clear now that the Democrats were unwilling to put in the hard work of convincing everyone in 2008 to have a reason to continue voting Democratic in 2010. This is one of the downsides of demonizing your opposition. You don't have to do any work to continue winning votes. Until it's too late.
The GOP is about to learn that lesson.
Repeating this cycle doesn't help the Democrats. Stopping the demonization and starting the battle of winning voter loyalty is how you put away the GOP for a generation. There's an entire swath of Obama-Trump voters that can be won back - and can stick with a populist Democratic Party. You want to replicate a vibrant and huge Democratic majority? Give the electorate a reason. The GOP sure as heck doesn't have the capability to win 55% of the country on a consistent basis, not with their base, but the Democrats do.
The Democrats should recognize Trump as a legitimate President and go to war with his policies. "We respect the President, but this is why his policies are going to screw you, your family, your loved ones, and your communities and this is why our solution will actually help you."