Poverty is directly correlated with crime (understandably so, people will break the law to survive, this is why correcting for income level makes racial crime disparities disappear)

Homelessness is also directly correlated with drug use. Not saying they deserve to be homeless or anything, just that there is a known association between the two populations. (40-60% of the homeless struggle with alcohol or other drugs)

I’m just saying this is going to be a very hard sell. People hardly ever go out of their way to help each other even when there is no cost to them, never mind if you tell them that their neighborhood will literally become less safe but it’s for the greater good.