No it's not. The mechanics are capitalism are fundamentally about mutual benefit. I give you money because having your product is worth more to me than having the money. You give me the product because having the money is worth more to you than having the product. Mutually beneficial exchange is the cornerstone of capitalism. At the end of the transaction, we are both better off.
That's not to say that there's not problems around monopoly and violence, but the latter is the failure of the state, not of the market. And monopoly is not exclusive to capitalism. Under alternative systems, everything is controlled by a monopoly (the state).