Capitalism doesn’t have to be coercive to be wrong.
Capitalism is, necessarily, coercive. You can find other things wrong with it, but this is an inherent characteristic of reserving ownership to a "landed" class.
Even some perfectly voluntary capitalism with a UBI would still be wrong because capitalism inherently violates workers’ inalienable rights to workplace democracy
But it achieves that end through the process of "Capital Strikes" (ie, lockouts, hiring freezes, speculative hording, etc). And capital strikes are only possible via coercive force (ie, putting a guy with a gun in an industrial site who shoots any worker that tries to enter and engage in production).
The much stronger framing is alienable vs. inalienable rights.
Rights are legal fictions. There is no such thing as an inalienable right in a material sense. You show me a right, I'll show you a guy with a gun who can alienate it.