and rests on the proposition that a white majority population has perpetrated a wide and pervasive racist agenda against others.

For anyone who has taken an even cursory perusal of unfiltered history, this is exactly what has happened.

Denying it or questioning it is to reject facts and evidence wholesale, and is a classic conservative rejection of reality in favour of a racist and bigoted ideology.

Wow. Conservatism really has become all about making up something completely fake and fantastical, then getting unreasonably mad about it.