> Poverty, crime, violence.
Anybody want to tell him?
There is no official ranking of capitalist countries, but the Heritage Foundation Index of Economic Freedom probably comes close: https://www.heritage.org/index/ranking
The top 3 countries are Singapore, Hong Kong and New Zealand. The bottom three are North Korea, Venezuela and Cuba.
I think violence is perhaps a bit more balanced; you see violence in Hong Kong and Venezuela, for example. And perhaps the crime rate is the same in North Korea and Singapore. But when it comes to poverty, it's pretty clear that you're better off in the countries at the top rather than the ones at the bottom.
To conclude that these are properties of capitalism you need to examine both capitalist and non-capitalist societies and observe that capitalist societies exhibit poverty, crime and violence (true), and that non-capitalist societies don't (false).
But I understand your point that perhaps these are not necessarily inherent to Capitalism. I believe they are, as Capitalism structurally enforces inequality which inevitably leads to these things.