Earlier quoted context omitted.
You seem to think need trumps all duty to your fellow citizen. I do not. By suggesting need trumps everything, you are demonstrating why the benches have disappeared. If we live in a would where we accept that we allow some folks to disrupt complicated social programs, then those aspects of the social programs will disappear or the programs themselves will disappear. This is exactly what the essay describes as happen…
Glad you can enjoy homeless people's "duty" not to lay on a bench. Do you have a duty to give them food? I'm sure you're able to justify why you don't have a categorical imperative to help them.
Why does society have an obligation to assist and protect people who don't contribute to society? If you feel some moral imperative to assist some druggie slobbering in his own shit then by all means you do do, but don't rope me into it. The only people with any obligation to assist are their families or those whose religions command them to do so. Neither involve me.