In Chicago,

For a thug to visit a person with a sign is not violence and doesn't deny that person's human rights. Thugs often bully and threaten people, but if all the thug does is show up at someone's door with a sign, that is not bullying.

Thus far, I don't see any reason why this needs to be restricted or why it matters what the algorithm is that selects people for visits.

The real question here is, does that visit tend to make a person less likely to commit crimes? And if so, what other effects does it tend to have?

If the visits — or other consequences of selection — tend to have harmful effects on the person selected, that would be a real problem, and whether race indirectly causes people to be selected would become a real issue.

Here's where this might lead.