I really don't understand people's eager desire to condemn capitalism. It's like they think human life would require no resources if we simply abolish capitalism. We'd still need shipping routes even if we lived under global communism.
I too feel like a lot of people confuse Capitalism with Commerce. It doesn't matter what "ism" society operates under people will buy and sell and trade. The "ism" just describes how and where the bulk of the money ends up.
I'd agree there's something you don't understand if you think the response being advocated for is generally Soviet-style communism with zero of the properties of capitalism and no shipping lanes for some reason.