This is an important point
The GOP tacitly tries to message to its racist base that the Democratic Party's white members are "race traitors".
Now I hate Bill Clinton for my own reasons, but if you studying how the GOP's attacks on dude, what was central was trying to paint him as someone who wants to help minorities at detriment of white people (even when he was hurting minorities with policies, the GOP argued he was not hurting them enough). He was a white southern guy on the side of black people, so you can't trust him.
This is why it is so important to move racial attitudes in America through constant pressure. To try to make younger white people be less open to the GOP's racist appeals than their parents. With rural whites it might be a lost cause, but suburban white kids are not as reactionary as their parents (still far from perfect), which jams up the GOP and requires them having to cheat constantly to maintain power.