I do agree that there is a degree of unnecessary hatred out there for the current President, the majority of which seems to manifests itself out of voluntary or involuntary ignorance; however, I hasten to point out that Bush, and his two predecessors, were subjected to a lot of the same sort of criticism - Google for "Bush is the antichrist", or other patently absurd things, and you are bound to find quite a few hits from 2003 onwards. Whether I agreed with Bush and his policies or not is irrelevant, he didn't deserve that sort of nonsense and neither does Obama. As you indicated throughout your post, it does nothing to advance any sort of political dialogue, from either end of the spectrum.
Besides the normal back and forth banter of political idealogy and policies, the viral hatred for Bush manifested itself after the realization of invading Iraq under false pretenses, the casualties of an unneccessary war, and all that had followed such as the Patriot Act, Wireless Wire-tapping, torture, etc....there were legitimate concerns for prosecution of that Administration that was more detrimental than lying about a sexual act in the WhiteHouse...
That is hardly proof; that is an online opinion poll from one organization, with less then 2,500 respondents.
On a more general note, beyond me splitting hairs about what does or does not constitute proof, it stands to reason that the economy is bad, the world seems really messed up, and people lash out at those who represent the existing power structure(s) whom they view as having failed them - in this case, the government and Obama as its figurehead. Lots of people think lots of crazy things, but I am dubious that people really believe (in the same way that they believe in oxygen and gravity) that Obama is a Muslim, socialist, antichrist, right-wing Christian who has thrown in with the terrorists.
Ok, leave out the polls, just read some of the extreme posters on this site ? Listen to AM Talk "Hate" Radio, Or witness Tea Party signage and stage guests, or watch an hour of Glen Beck parade Nazi images on his hour long TV program...the fact is, the economy is improving, and that's not good for the GOP's chances in 2012....