It's not about choice; it's about force.
Only Carrol and Angelus seem to get the non-autonomy of labor (and though they may dispute it, in the process they repudiate, or at least critically complicate, marxist writ about capitalism being the struggle between two classes). Saying that workers' working makes capitalism work seems controversial only if you take it as a moral statement. But it's not. We all, even the non-laborers, reproduce capitalism every day. So what? It's not a failure of will or consciousness. It's how capitalism works.