Well the taxes pay to enforce property rights. It sort of becomes your problem if others don’t have a place to live and you won’t pay men with guns to keep them from taking your place to live.
I don't think we are on the brink of societal collapse :)
And it is just like now, I use a gun to shoot people that try to enter my house. What you're saying is that I should have people with guns in the house for the times that I'm not at home.
How is this different than today when your house gets robbed during the day?
Anecdotally to me USA even looks like it's collapsing every time I visit it. In the larger cities there are homeless everywere, and often literally next to luxury yachts and limousines. A lot of the infrastructure seems like it's literally gonna collapse, and lots of it really does. It's quite a cyberpunk vibe when compared to e.g. the nordic countries.
Of course there are similar problems in many european countries too. Especially England is quite bad w.r.t homelesness and infrastructure. But England is in many ways culturally closer to USA than most europe.