Not at all. I'm against taxes that cost me more money on the homeless problem while disproportionally effect me more than others. Spending more money locally on the homeless giving them handouts is only going to attract more worsening the problem.
My girlfriend was recently assaulted downtown by a homeless person which is why we liked kirkland when we checked it out because there seemed to be less of them in kirkland.
I think the homeless problem should be tackled on a federal level since it is easy for them to move states but not countries. Thus, any non-federal government that spends tax revenue to help the homeless will likely just attract more homeless people from other areas worsening the local populations lives through the negative externalities and the costs which only reduce other local areas homeless externalities/expenses.
Seattle seems to be growing strong with this methodology which is why I am against taxes like this that incentivize the homeless to move here.