Martin Luther king would not agree with the current leftist in this country

For those who don’t know a ton about the history of the 60s there was 2 separate black movements at the time. You had the black panthers/black liberation army which was a violent,communist, revolutionary, black supremacist and separatist movement most notably led by Malcolm X. These people murdered 38 policeman over the course of around 2 years. They also committed robberies and many other crimes and saw themselves as allies with communist across the world including the north Vietnamese we were currently at war with. Then there was the peaceful movement of martin Luther king. He believed in non violence and reform instead of revolution. There’s a reason he said he wanted the black children and white children to play together. It seems weird to me now though, that the left has co-oped MLK as someone who they support and who they assume would support them. Now although he had plenty of flaws in his personal life the man was a believer in god and not a believer in communism. He also did not want death to America, that was the other black movement of the 60s that was actually against martin Luther king. So why is it now they wish to use him as a hero of their cause when the leftist of the day looked at him with disdain and considered him weak and an enemy to their cause?