[typewithrhythm]

You can't argue your way into making a homogeneous population.

The reality is that the groups are distinct, and immediately changes the dynamic from "a facility used and maintained by the group who established it", to "a facility maintained by a third party, to be shared". These do not have equal value to an individual.

[watwut]

The reality was that whites were disgusted over idea that black guy could swimm in the same pool as a white girl. It made them feel dirty. It was really that dynamic, not just abstract "who established it".

There is this knee jerk wish to constantly make that dynamic into something nicer or "normal outside of racist interactions". But, it is not. The same effect does not happen when two groups just merge.