Earlier quoted context omitted.
Sure, they were more prosperous on average , but the poor were much more worse off than the poor in rural areas. It's also impossible to say whether the prosperity was due to the free market and lack of regulations, the industrial revolution and development of steam power or the rise of the middle class and their increased free time/income. I suspect that mostly it was technology, similar to what's happening in devel…
"the poor were much more worse off than the poor in rural areas." Do you have any support for that assertion? The poor themselves decided en masse to move from village to city at the time, which seems to indicate the contrary. Yes, in the city they were also much more visible to literate observers who would write about their misery, but who knows what those same observers might have exposed if they had lived in a vil…
You have the same mechanism at work today, in slums in India, South America and so on. The draw is the possibility of being better off and having more opportunity than you would in a rural area, but it doesn't always end up that way.
But we're getting off the point, which is that a free market doesn't give you "unprecedented human health and prosperity" - the best that you can argue is that it's one of the preconditions (but not the only one).