Just to be clear, is the argument that there is no point in creating a park because the homeless will just fart it up? Really?
Not even remotely. For starters, the "park" in question--Carl Barron Plaza (CBP)--has been in existence for decades. Someone upthread mentioned it. So I made the point-blank obvious observation that any holistic appraisal of what ought to be done with CBP would necessarily include a frank analysis of the best intervention/mitigation strategies involving the chronic homelessness issues there. Yes, I cited the scenario of it being renovated--and then the homeless descending back on it--but only to underline the basic point: that addressing the homlessness crisis in our country, if it is to be done humanely and progressively, is fiendishly difficult.
But since you mention it, yes, there is a larger issue of private entities/developers swooping-in to renovate public spaces, as part of much-larger redevelopment projects at adjacent parcels. AKA "mitigation" (extortion of developers by municipalities). The developer and the municipality enter into an LMI (License Maintenance Indemnification). The shiny new park/plaza/square/what-have-you is delivered. Ribbon-cutting, speechifying, etc. But then... ohmigod! The developer walks away from covenants of the LMI. And said public space gets junked-up. And the municipality is left holding the bag.
Point being: making developers do "mitigation" as a way to evade the fact that municipalities can't or won't perform badly-needed renovations of public spaces--and then compounding the error by signing LMIs--is a really crappy way to pursue urban revitalization. But it happens all the time, is my understanding.