Those charitable programs exist now. There's nothing stopping them from existing. So why does the problem still exist then? And more importantly: Why have other

Those charitable programs exist now. There's nothing stopping them from existing. So why does the problem still exist then? And more importantly: Why have other countries solved this in a far better manner than the US? There's plenty of easy answers to these problems if we'd look to just emulate what other countries do for welfare, healthcare etc instead of pretending that we're better than them while failing at every aspect.