We had hard, gold backed money in the Gilded Age of America, and it sure as shit didn't stop capitalism from abusing people. We hard, gold backed money when people fought for union rights and the government BOMBED its own citizens. We had hard, gold backed money when we sent children to work because their hands fit in the machines better so they could be maimed for life to save the capitalists a few bucks. We had hard, gold backed money when we had fucking slaves, when you could own and trade in living human beings. Abusing the money printer is just one of many, many ways the capitalist class exploits us, but the fact they're doing it doesn't change the fact we live under capitalism. You can't even explain WHY fiat means we don't live under capitalism, you just insist it makes a difference that you don't explain.