If arbitration is rigged, and you can show it, you can go to court and overturn it. Again you should have got legal advice on the contract when you signed it. But binding arbitration means no appeal if you don’t like the result.
Decent commercial contracts mean that there are processes where you can either pick or veto the arbitrators that are appointed. It’s not as one-sided a relationship as when companies try to force consumers into their own process that they call arbitration. Though obviously I’ve not seen this contract.