Maybe because some of us think he was a communist trying to make America a communist country and he promoted that agenda. The truth is the truth no matter where it goes.
But nobody quotes or remembers him for any socialist beliefs -- the left themselves buried that. What people remember him for -- the reason he is seared into the national memory -- is what he said about race and treating people in a color-blind manner. That's what people remember, and that's what's being trashed when you trash him.
We ought to be quoting his statements on race 24/7, and jamming it down the throats of the leftists at every opportunity.
Another truth is that a lot of people we’re very happy with segregation, and resented uppity blacks. Pro-segregation And kkk people in this country mught as well have been on the KGB payroll.