Perhaps it's best to pursue an idea from this discussion in a new thread.
Why is a free market economy a good thing? I propose that it is a good thing because a free market allocates capital, labor, goods and services on the basis of legitimate human needs and desires. That is to say: the free market accurately reflects legitimate human needs and desires, and successfully allocates capital, labor, goods and services accordingly.
Conversely, then, to the extent that the free market does not reflect human needs accurately, or does not reflect legitimate human desires, or does not successfully allocate capital, labor, goods and services in accordance with legitimate human needs and desires, the intervention of public authority becomes necessary.
If you agree with the foregoing, then we have the basis for a conversation.