I'm always boggled by the folks that think that black people aren't treated unfairly. I have a theory-- the boomers (and Gen X) crowd lived through a period of much more concrete and visible racism-- Jim Crow, laws against "mixed" marriages, more open bigotry. For those that are bigots, they choose to ignore that there's more to racism than that and think things like Affirmative Action or anti-discrimination laws actually tip the scales the other way [they don't]. For the less bigoted or subconsciously racist, they may just thing "things are close to even now [they aren't] considering how bad they were."
Meanwhile, the younger generations that grew up post Loving and post Jim Crow are more attuned to the degree to which racism is still a huge everyday thing.