Earlier quoted context omitted.
> Will those people be better off sleeping rough? Everyone should have access to basic housing. If they do not that's a failure of government to provide a sufficient social safety net.
What is basic housing? Today's poor housing would look like a damn luxury 100 years ago. Today's luxury housing will probably look bellow standards after 100 years
So the point is that following your reasoning there is really no end to the depravity you can reach and somebody would still be able to claim that is all fine, because only rich people in the stone age could afford such luxury.
The point Smith made was that poverty is always a relative phenomenon. What is a necessity is always defined in terms of the society you live in. There is no such thing as a universal definition of necessity.
I had an interesting conversation about this with my wife's American parents. Despite the fact that her parents were noticeably better off economically in their childhood than my parents, they felt a severe stigma of poverty my parents never felt. My parent grew up in a country where they were much the same as everybody else. In fact a little better off. They did not feel poor at all. They had a happy childhood both of them. But one of my wife's American parents had a bad childhood, plagued by a strong feeling of being lesser than everybody else. Never having people over on visit out of shame over their own poverty. She was used to seeing everybody else being better off and internet the idea they they were somehow lesser people.
Today my home country is richer than America by GDP per capita but comparisons of wealth and of people's feeling of wealth or poverty is difficult. Many of my american relatives enjoy bigger houses and cars than I do, but one always gets the feeling that their life is much more of a struggle than mine. I live in a smaller house and have no car. But I have no financial worries like them. I have long vacations, I am not constantly overworked. I don't worry about health care insurance, saving for college education to my kids, getting fired.
So I think one should have some respect for the desperation and despair the poor in America feel. Knowing that a surprising car repair or medical bill could send you onto the street in no time. Even poor in much less wealth western countries have to deal with quite that level of insecurity.