As for MLK, when MLK was alive, the majority of Americans didn't like him either. It was JFK and RFK who ordered the FBI to wiretap MLK's phones.
If you were to young or weren't born yet, after MLK death, the schools indoctrinated the students that MLK was a hero. For us who were around back then remember MLK differently. But over the decades through revisionist history and threats and intimidation's Americans were forced to accept MLK as a hero. States that refused to recognise MLK birthday as an official holiday were threaten with boycotts. Remember that ?
But go down to a decent library and go through the archives of newspapers and see what most Americans thought of MLK during the 1960's.
Here's a good starting point. -> http://www.ropercenter.uconn.edu/pub...n/62/62011.pdf