Earlier quoted context omitted.
I choose one out of the many, and it doesn't have to be every day - or every week; and I do this only when I have some real time to spend to talk, in case a conversation gets deep, which can happen and is a good thing. At least a third of the time I bring say cherries or a couple of bananas (scurvy from Vitamin C deficiency is not uncommon for homeless people.) The food donations would be more common except that I do…
Have you ever seen Schindler's List? There's a scene, near the end, where Oskar Schindler breaks down. He looks at all the little luxuries in his life, tallies their cost, and lists off how many more lives that could have saved . It nearly destroys him. To Schindler, "I have no moral obligation to do the impossible" would have come off as a self-serving rationalization for not doing as much as you can. For all that,…
Also remember, you don't know my circumstances - I'm trying hard not to use a wheelchair now, for example, so I may not be as active as you. I'm not young. Kudos if your charity can be relentless.
So do note that my argument was a limited one, I was arguing in favor of at least some action, not trying to define ceilings other than what you can sustain doing. Which, as it turns out, over time - is actually the greatest possible effort one could offer.
Not to mention that homeless people are but one possible focus for charity so I can't accept your apparent insistence that I should devote all my energy to them exclusively; I spend far more time and effort trying to help the severely chronically ill in my own way and am not willing to give that up. If only because chronic illness often leads to homelessness.