A beloved Terry Pratchett character defines evil as when you treat people like things.
Developed countries installs thousands of regulations (100k - 2M regulatory acts per developed country) on top of wild capitalism to tame it.
However, even heavily regulated liberal capitalism is better than other systems.
Capitalism is the least bad system we have tried.
Just not having insurance tied to employment would be such a massive win.
B: What is it then?
A: It's free-market capitalism with good regulation and a comprehensive social welfare system.
B: Well, let's do that!
A: No, that's socialism!
"We" actually experienced all social systems "we" invented so far, which are allowed by "our" productivity.
It would be crazy to assume that the whole humanity longs for capitalism whatever their situation or belief system, the same way _we_ don't assume any current form of capitalism is specially superior to other alternative forms that could better benefit our situations.