Yes, that’s how their brains work! Not so much a moral failing, they’re wired different. Hard to get your own wiring around that.
I often see this in the idea of life being a zero-sum game. If someone gets a thing, that thing was taken from someone else. If blacks and gays get rights, my rights were taken!
See all the complaints that gay marriage diminished hetero marriage. Illogical and incomprehensible as it seems, keep in mind the zero-sum thinking and it makes far more sense.