Power drives consensus. Capitalism is just a means to allocate this power within a functioning state. But even in a non-Capitalist state consensus still exists due to allocated power.
Capitalism has uses other than consensus as well.
Ah. I think I was talking past you by hyper focusing on just the "capitalist" and "consensus" parts of what you wrote. I was taking it to mean that there was a special connection between capitalism and consensus, and not just that capitalism is one means by which consensus is created.