China, Cuba, Vietnam, and Laos are all examples of socialist countries today. China alone lifted over 800 million people out of poverty in recent decades. Compare that to the capitalist paradise in India.
Not really, Nordic model is capitalist because the capital owning class owns the means of production and holds power in society. Nordic model has generous social services and a social safety net, but that of itself does not make it socialist. A socialist model implies that it is the working class that holds power and that means of production are under a mix of public and cooperative ownership. This is the model that all western countries fight against.
China is a terrible example of a socialist economy, and the others are still mired by poverty. One could claim that is due to capitalist sabotage, but I don’t think it does socialism any favors to use them as success stories.
China is in fact an excellent example of a socialist country. Here’s a detailed explanation for you that’s well sourced and referenced https://www.youtube.com/watch?v=BT7Th2aV0wM