You don't really know anything about his situation, the mental history of the woman or anything else to be able to make what appears to be a very glib and sligh

You don't really know anything about his situation, the mental history of the woman or anything else to be able to make what appears to be a very glib and slightly judgmental statement. It's far less risky from a personal standpoint to be able to donate and pursue effective altruism that it is to individually (versus a proper social collective) shoulder the responsibility for an entire human being. And even though this isn't an argument against what you're saying, ask yourself, do you currently shelter a homeless person in your house? Even if you don't know a homeless person, you own a car don't you? Surely you have a moral obligation to go and drive through your city, locate a homeless person and shelter them until they're back on their feet.