The problem is that homeless are unreliable and can use bussing programs as free transportation without proper verification that they actually have family in the other side. Ya, they get someone to vouch for them, but when they arrive, that was always a farce only lasts a week or so. Bussing isn’t really a solution, their drug or whatever problems actually need to be solved.
The real issue is that cities are expected to solve its homeless problems with local resources when they are never local at all (homeless are pretty mobile, and wind up in liberal fair weather cities for good reasons).