Not a strawman. There are tons of examples of framing the capitalism issue in terms of consent vs coercion. Nozick talks about capitalist acts between consenting adults etc.
Many worker coops and majority employee-owned ESOPs exist today. It works.
Democratic theory argues that contracts based on consent to alienate are inherently invalid. Since the employment system is on the "wrong" side, the original theory invalidating these contracts is ignored and forgotten
Postcapitalist systems can use market prices and, in principle, be Pareto optimal on non-institutionally described states of affair
@politicalmemes