Most of government's functions in a modern society are coercive, the role of the police is coercive, prisons are coercive, the system of law and order is coercive-and I suppose you have no problem with prisoners being punished? Taxation is coercive, but without that we wouldn't have roads, a functioning state education system or the police. Coercion itself is bad, but in some spheres it can be used for good. Either way the extent to which the minimum wage is coercive might be exaggerated, a majority of Americans earn above the minimum wage.