Really I'm not looking for a fight, but that's just ignorant. The VAST majority of jobs don't directly produce something (even in factories), they just facilitate some minor part of the process (delivery of parts, quality testing, packaging, inventory management, cleaning, tool repair, machine maintenance, forklift driver, utilities, etc.) Being a broker (or any other sales position) is facilitating a transaction that would not otherwise happen for a item that would not get manufactured if some did not buy it.
I will give brownsfan a break in that I react to the quantity, overhead and bureaucracy of brokering. MANY but NOT ALL brokers are promoting scams and overhead expense and hiding in govt regulation.