Yeah the logic checks out, but is fighting it any better? In this case there are basically 2 options. Create a competing superstition that says black doors are good, or make laws requiring doors to be painted black. So now you either have 2 superstitions or something a whole lot worse than a superstition. In this case it's probably better to just live with not having black doors.
If that's a reference to the various gender pronouns and the like, regardless of what you think about it, it mostly strives for equal rights, not more rights as far as I know, so a more apt mapping may be that the doors should be approached in the same way regardless of what particular color they are today.
It's not. It's a reference to the more recent philosophies regarding race that indicate that being "colorblind," i.e. not factoring the race of an individual into your decision-making process, is actually a form of racism, because you're denying the individual's historical and lived experiences.
