Killed bin laden got rid of Mubarak
Legal gay marriage and got rid of "Don’t Ask, Don’t Tell"
Legal weed in some states
Cheaper medical care
Ended war in Iraq and almost out of Afghanistan
Helped U.S. Auto increase market share
reduced our debit in many ways
Etc.
Yes, I believe he would win again. But the point is mute, so it is not really worth talking about.
It took us decades to get Bin Laden - the hunt didn't just start in '09, and the last I checked, Obama merely gave the OK when Navy Seals caught up to him.
My health insurance and that of everyone I know who talks about it has gone up dramatically. Maybe if you're on the lower end of the socioeconomic scale it might be lower. But remember that health insurance does not equal health care, and big govt intrusion into just about everything generally increases costs, fraud, waste, and abuse, while decreasing quality of care.
As for Iraq, they pulled out too early with no SOF. Everything was under control until 2011. And yes, Iraq was a mistake in the first place - particularly since we did not take the oil.
The GM debacle never should have happened the way it did. And everything done to "save the world" was done mainly by the Fed and the Dept of the Treasury, and mostly done before Obama ever got into office. The recession was just about over by early 2009. And no, Bush didn't cause it, and Obama didn't end it.

When Obama took office, the national debt was $9-10 trillion. Interest rates have been at zero for 7 years, and our national debt is now nearly $19 trillion. So you're going to have to explain how the debt is now reduced?

No doubt many people would vote for him again if he figured out a way around the 22nd. Either because of his race, or because many people like big govt, like being told what to do, like more political correctness, like a weaker foreign policy in exchange for more free stuff, are into the whole "social justice" thing, like higher taxes and more regs, don't believe in free markets, believe wealth is bad and needs to be redistributed rather than accumulated, etc, etc.
We're fucked - people care more about free stuff and a president who is "cool" than actually solving our problems - too much govt, too much debt, too much spending and borrowing, weakening ourselves on the global stage, social justice and political correctness run amok, etc. And the Republican establishment are either in bed with them or too afraid to do anything to stop it.
We'll be Greece within 25 years at the rate we're going. Bush was bad mainly because of Iraq, whereas Obama is even worse because of the MANY things his admin has done and not done.
https://research.stlouisfed.org/fred2/series/GFDEGDQ188S/