LOL! Sounds like the Y2K doomsayers.
Reality is that the President (whom ever it may be) actually has very limited powers to affect the country. The bigger fight is in the legislative branch (Congress) since they make the laws. The President can only approve them or veto them...and even then, Congress can override that veto. Obama never wrote the Affordable Health Care Act into law, Congress did. He just signed it after they did.
People have been too sucked into the Presidential race this year and have forgotten that the real power (or blame) lies in Congress. Don't like the Presidential candidates and don't care for either? Ignore them and place your vote into the Congressional races where the voices of the people really lie. Don't like the laws? Blame Congress, they wrote them and voted for them. The President's signature on them is only secondary to their existence.