You don't have to agree with facts. The US has dozens of "socialist" programs that have been running for many decades & some hundreds of years. Sweden is always labeled as one the most socialist developed countries and has managed to avoid communism for 700 years. Capitalism has to be kept in check because humans(especially Americans) are to greedy to do what is good for the long term health of their country.
Is the government lousy at running the military? police? building massive highway systems,? spying on everyone? They used to be good at giant infrastructure projects, education, power grid, & other things. But now we have let everything become political so every program has to be flip flopped every few years to make the new party in power happy.