Consider a Venn diagram of:
(1) people who jump into online discussions correcting others over what the AR in AR-15 stands for,
(2) people who jump into online discussions correcting others over what the official Confederate flag looked like, and
(3) people who jump into online discussions claiming that there was no GOP Southern Strategy and that Democrats exclusively are the real racists.
That Venn diagram would be three nearly identical and concentric circles.