> There is no such thing a truly free market.

Nothing human is perfect. However, history shows us that the more free market an economy is, the more prosperous it is. It doesn't have to be "truly free" to be effective.

In contrast, whenever socialism is tried and it fails, socialists describe it as "not true socialism". Since there is also no such thing as true socialism, the more "true" a socialism is, the more it fails.