So the socialist says, "Look, we've all gotten together and voted that we should have welfare." or "The majority of Americans want unemployment benefits" or whatever. The only thing is, if that were true, government programs would not be necessary. If you're so confident that most Americans want people to be given money even if they don't work, you should be fine with eliminating unemployment benefits, right? All of the majority who believes in those benefits would continue to provide them. If you're convinced that it "wouldn't be enough" (remember, we're constantly told that it already isn't enough), then perhaps the majority doesn't agree after all.
I'm sorry, but that is not how it works. As any basic course in game theory will show you there are plenty of instances where the outcome people want will only come about through compulsion due to the great desire to cheat.
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SubDeity wants to vote for Calvin Coolidge. [Evil Republican]
Play Der Langrisser.