If you build strawmen it's easy to knock them down.

Socialist mostly want a floor so people don't starve to death or lose their roof to medical bills. That floor would be quite easily to establish at a comfortable life for 10 billion people on this planet while still allowing for more than enough many times over millionaires.

And yet socialist countries starved millions, and their only periods of relative prosperity were when they loosened their ideology and allowed limited market reforms.