My view of roaches is to ban them from my house. I suppose your view is to just ignore them. Panhandlers serve no viable purpose and, instead provide a traffic hazard, reduce property values and breed crime. There are anti-vagrancy laws on the books and they need to be enforced rather than having the left lionize street beggars the way they do illegals.
They don't bother me. Why should I care if they beg? I don't engage with them or pay them any attention.
If there are already laws that don't allow this activity, why did you propose they be "banned" from busy intersections? Aren't they already banned?
Remember, this lady was NOT stabbed to death by a panhandler. She was stabbed by her husband and step-daughter. Let's ban them okay?
You're problem is that you admit to engaging with them. My advice would be to stop doing that. Just ignore them.