As far as the homeless minority: sure, yes, they may not be as big of a population as we assume, and yet here we are discussing how much of a problem it is.

Personally, I can get behind stuff like UBI to help those folks so long as it's distributed to everyone rich or poor, and/or other inefficient social programs are shutdown to help offset these costs. Otherwise I feel like we're just rewarding incompetence and penalizing success, which I believe is where we get into enabling the proliferation of the worst kind of society to live in — one filled with apathy, nihilism, and literally poo everywhere.