Earlier quoted context omitted.
To be fair, it's not the fault of libraries if society offers no more humane options for the homeless than to hang out there... nor is it the fault of the homeless.
It isn't necessarily their fault, but it still feels false to wax poetically about the educational and societial benefits of what is effectively a homeless shelter. Not to say that homeless shelters aren't useful to society. Obviously they are. I just doubt that this is what library proponents were thinking about when they talk about libraries.
Bridges and overpasses also shelter the homeless sometimes, but their other benefits remain intact, and not all libraries are "effectively homeless shelters."