While I mostly agree with you I don't think country-owned companies or even monopolies are always bad. There needs to be a huge amount of real separation between politicians and those companies but it can work. In mine, both gambling and alcohol spirits stores are monopolies and owned by a country. Profits from gambling are distributed to grants for health and social welfare nonprofits. The question is if my country with very little corruption is the exemption that confirms the rule or if, if you do it right, it can work.

I also do not believe communism without very solid safeguards can work and those would need to be applied almost at the start. I am also pessimistic about human nature these days and am not sure if there can ever be enough safeguards to protect that model from misuse. I am what you could call a democratic socialist. I believe in mix and match where public and private companies can work in the same economy. Although I do oppose land resources being sold, especially as they are usually sold with a pittance for companies to profit. And I am not talking about private persons selling their land's resources but government land resources. Selling them really doesn't often make economic sense unless extraction would require a really high investment. Ecologic considerations should also be taken a lot more into account.