That is help. A drug addicted homeless person has two serious problems, and it's not generally viable to try to solve the homelessness problem without solving the drug addiction. Even if you were to straight up give each drug addict his own house, a lot of them will wind up selling the house to buy more drugs because it's that hard to resist the temptation when you're addicted. So, in order to help with the homelessness, you generally have to help with the drug addiction at the same time.