Freedom is basically capital, because the US is a plutocracy. You're either lucky enough to inherit economic freedom, or you can buy it - if you make enough money to be free of all debt and acquire substantial capital.

The opportunities to do this are strictly limited and anyone starting cold is against very tough odds. And the activities that are rewarded are strongly biased towards rent-seeking and monopolistic market exploitation over less aggressively self-serving provision of goods and services.

Obviously it's not impossible. But if you want true economic freedom, your personal and professional choices are - ironically - very tightly constrained.