Very simple! It is called Laissez-faire (or sometimes laisser-faire) is an economic environment in which transactions between private parties are free from tariffs, government subsidies and if it works for them God bless em!
The issue is does socialism work FOR EVERYONE. History has pointed out there has never been as successful society as the USA which is NOT a socialistic based economy. No one every said socialism wouldn't work. It works in small closed environments but will NOT work in
50 independent states with thousands of independent towns and counties and independent people all standing around waiting for central planners to determine how much we all should pay for gas!
What country is more ethnically diverse, USA, Brazil or South Africa?
1st - USA
2nd - Brazil
3rd - South Africa
Brazil has the largest number of italian, lebanese and japanese descendants and the second largest number of german descendants in the world. USA has the largest number of german descendants. There are almost all nationalities in Brazil,
but USA has even more: philippine, thai, korean, hindustani etc (that kind of nationality is rare in Brazil).
So how can there be any socialism with 310 million people EACH with their own identity and very little national cohesion but greater cohesion
in their homes, cities, counties, state!
No one ever said Socialism doesn't work... but not on the grand scale of the USA!