Communism doesn't work the proof is in history. The biggest con is that your country will eventually fail and you'll have to start again. The only pro would be for the people in power. They can have whatever they want at the expense of the regular folk. Kinda like Capitalism where the capitalist countries are rich and most people have more than they need. While other countries that make goods for them are poor and impoverished.

Universal income is a solution but that would require a one world government. Not too many people are keen to that idea.