It's a lot easier to criticize "the market" when you live in a system that benefits from it. Life is universally worse in places where "the market" doesn't exist or economic actors aren't allowed to profit.
I think you’re confusing “any benefit” with “net benefit”.
The world, the US, and Capitalism would all survive just fine without McDonald’s, Walmart, or Oracle. In fact it would probably be better off without any of them. Global homogeneity is not awesome, it’s dystopian. Companies having less power than the 90th percentile of countries would be good.
When you have a regional company you can still afford to think of your customers more or less as humans instead of statistics.
It’s a lot easier to do a lot of things when you Other the people you deal with, including exploitation and especially warcrimes.
They don’t talk about citizens or people, they talk about “the market”, which is barely anthropomorphic.