Eliminate private property
You eliminate people's incentive to work
When they won't work
Then you can enslave them, forcing them to work
Or you kill them so there are less mouths to feed.
These will ALWAYS be the questions socialists get to face when they vote away, or simply kill the productive people they parasite off of. And with productive people gone, they will have only each other to parasite off of. In the end, the socialists always lose.