According to https://www.heritage.org/index/ranking for instance, there are 24 countries in the world with freer economy than USA.

The right wing, climate change denying, Heritage Foundation is not a reliable source. That’s nowhere near an unbiased analysis, but an opinion piece. No one can seriously believe the US to be less “free market” than like half of western Europe.

That’s like asking the North Korean government to create an index of democracy.