Or their minds are so clouded and closed that they don’t know they are wrong.
I remember several decades ago being surrounded by the thinking that black people have more advantages than white people because of affirmative action and whatnot, and if they are still in poverty or have higher death rates, that’s a problem of their own making, and “the rest of us” shouldn’t have to waste our tax money to unsuccessfully government-spend them out of a problem they don’t care to solve on their own.
That’s pretty strongly-established thinking in those circles, strong enough that they don’t have to go through the mental and psychic gymnastics of knowing one thing and saying/doing the opposite in the interest of group orthodoxy. A lot of people, particularly rank and file voters, who think that way do so honestly, for what that’s worth.