I am sure that many people (like me) took the insults and disrespectful behavior towards President Obama in a very personal way.
Many of us have experienced racism from “non-racists” all too frequently. As an Asian-American, the questioning of Obama’s American-ness really strikes a raw nerve...
I would just add that not only ethnic minorities were offended by the Republican's tactics and rhetoric - though they had plenty of excuse to be. The disrespect shown to voters and the institution of the Presidency were also disgraceful, as was the general contempt of the democratic process.