I suppose my post came off demeaning

I didn't read it that way.

I was just flipping the perspective to look at it as a systems and design issue, rather than a behavioral issue. When anybody poops in a subway, it's the fault of the either the architect who failed to design the thing with enough restrooms or the management/politicians who failed to keep them operating correctly. It's never the fault of the pooper unless adequate facilities are readily available and he chooses not to use them purpose.