For most of the people on the left , I would agree with you.  Also most of the people that voted for him did not get the full story on him.   Also most of the people that voted for him in 2008 were tricked by be called racist if they did not vote for him.  To this day that is one of the cards that his supporters like to play against people that disagree with him.

He grew up heavily influenced by anti-colonism people.   These people believed that the US took over Great Britain's and others role in the world.  For instance, listen to the pastor of the church that he attended for 20+ years.   Take a look at some of his friends and associates from back in 2008.   Also see what America's role in the world is today as compared to what it was before 2009.