"AM I ON CRACK, OR DID THE WASHINGTON POST JUST TRY TO REPORT AS SCIENTIFIC, UNCHANGABLE FACT THAT ALL CONSERVATIVES ARE RACISTS"
If those are the two options, then you are on crack.
The Washington Post reported that some guy says that "Republicans are supported by prejuded whites". And that guy says there is a lot of scientific evidence to support him.
That's completely different. For example: Republicans are supported by the NRA.
I think that statement is true. Does that meant the ALL republicans are the NRA? No.
Mainstream Republicans aren't responsible for what racists do. But if it makes us uncomfortable that racists vote for our party, then maybe we should figure out how to change that.