He's conflating socialism with dictatorship, while modern socialism is the democratic kind practiced by many European governments and advocated by Bernie Sanders. No one is talking about having the government take over all production and services. 

He is also setting up a false choice. The reality is that the US has a mixed capitalist-socialist economy, the only kind that works. The socialist part provides the goods and services that the capitalist part cannot. I don't want to buy a computer from the government, nor medical insurance from a corporation.

The problem is that the US economy has become unbalanced on the capitalist side, and almost half of the population is struggling just to get by. We are seeing a political rebellion against that, especially among young people.