I should clarify that by antagonism I don't mean individual negativity or dislike for... I mean conscious lack of interest at a design level in engaging those

I should clarify that by antagonism I don't mean individual negativity or dislike for... I mean conscious lack of interest at a design level in engaging those populations. The situation you describe, to me, is a manifestation of that cultural antagonism. That situation exists because society is squeezing out people who walk.