I'm not really sure where Chris Rock gets the idea that 2 wars were ended, gas prices were a result of Obama (ignoring that last year they were the highest they've ever been), or completely misunderstanding the reported unemployment rate, but hey confirmation bias ftw. It's amusing when gets credit with the good things, but he "inherited" the bad.
But I suppose had Chris rock even done a modicum of research, he wouldn't ignore the all time high price/monetary inflation rate, the fact that our troops are still overseas and aren't leaving anytime soon, the disastrous foreign policies with totalitarian regimes, Gitmo, etc. This is why nobody takes "celebrities" seriously.