Capitalism is exploitative due to the employment contract not non-worker capital ownership. The employment contract is bad because it gives the employer 100% of the property right to the produced output (i.e. ownership of new cars in a car firm) and 100% of the liabilities for the used-up inputs (i.e. factory machine services) while employees get 0%. The workers don't create the output out of nothing they use input materials @lemmyshitpost