I don't think that the fact that he was the worst president since anyone is really relevant. All presidents, all leaders, live in their own time. Bush lived in a time of potential peace and progress and simply did not understand his role and the expected role of the US. He was/is a fool who, in most nations, would not have made village elder. I do not believe he was actually liked or admired by anyone. His cronies saw him as a meal ticket and a way of getting their extreme views onto centre stage and his supporters were people who did not understand, and still do not understand, the place and function of any society as it lives and trades with its neighbours.
Obama's main thrust seems to be in mending the bridges that bush stupidly destroyed. The bush people are totally incapable of understanding that. Just look at the comments here!