You have made a really sloppy and inaccurate argument. Here is a summary of what actually happened:
- Inauguration day, 2009, the Republicans meet to outline a plan to obstruct everything Obama does: http://www.pbs.org/wgbh/frontline/article/the-republicans-plan-for-the-new-president/
- Obamacare is dominated by similarities to a GOP sponsored health care proposal from the 1990s. While it is not identical, Obama didn’t even bring the single payer (medicare for all) option — favored by true progressives — to the negotiating table. How is that not a huge concession? How does that not qualify as an attempt to compromise?
- Due to contested elections, caucus defections and the death of Ted Kennedy, Democrats had a filibuster-proof supermajority for four months. Instead of pushing through every bill on his agenda, Obama wasted most of this time trying to get one or two Republican senators to vote for the ACA. That’s definitely not the mark of someone hell-bent on cutting off the minority party. (If you want an example of what that really looks like, check out how the anti-competitive Medicare Prescription Part D bill got passed.)
I would say the reason Trump has done as well as he has is the incredible number of uninformed, uneducated, and/or apathetic citizens who live in this country.
