1. We don’t need everyone in society to be involved in trade.
2. We made it so that if you do not take part in trade (trade labor for income), you cannot live.
3. Thus, people will fear losing their ability to trade in society.
The question is, when did we make this shift? It used to just be slavery, and you would be able to survive so long as you slaved.
The fear is coming from something odd, the reality that you won’t have to trade anymore to live. Our society has convinced us you won’t have any value otherwise.