Red-lining was very deliberately done - at least partially - based on race. Literally even going so far as to label the red-lined areas as “infiltrated.”

But that being said, this could very well still be a remnant of red-lining, among the multitude of other ways minorities have been historically put at a disadvantage. So, again, I’m open to an argument that it should still be disallowed. But when you start calling numbers “racist” you’re going to lose a lot of people.