It indeed doesn’t work. Has been tried countless times. Whole eastern europe, North Korea, China and many more countries. It failed every single time because communism is a fundamentally broken system.
And please, don’t try to convince me that communism in the eastern bloc failed due to US.
Will you develop medicine for free? Will you do 8+ hour long surgeries for free? Will you teach children at school for free?
Nothing is free, buddy. If sth appears to be free, it’s only because someone sponsors it.