Well.
Allowing for 'safe haven' for drug abusers in 'private' spaces comes with the side effect of attracting unsanitary behavior aswell, not letting you have a 'poopoo-peepee' time whatsoever.
"Anarcho-tyranny" describes this so perfectly. If a tiny minority of bad behaving people of people is making things worse for all of us, we could choose to help, punish, or sequester that minority, as appropriate. But instead, it's the majority that must suffer in accommodation.