Your employer cant say ah you must use my mate Saul the solicitor that did my last house purchase who I know from the golf club.
"In France, as a general rule, arbitration concerning individual employment contracts is prohibited. This holds true even in cases where the parties have included an arbitration agreement and a valid choice of law clause designating that foreign law applies to the entirety of the employment contract. Such a strict interpretation is seen as a public policy measure intended to protect employees who are considered to be in a necessarily weaker bargaining position compared to their employers. By giving Labor Courts the unique competency to adjudicate such matters, France can effectively safeguard its workforce.
Similar interests motivate protective regulatory schemes in most European Union (EU) nations where, as we will discuss, the prevalence of arbitration in labor and employment disputes remains limited and political weariness towards the practice pervades. "
Are you sure you aren't mixing up binding arbitration with something else?
Edit: it sounded like you were talking about arbitration in a more general context than just employment contracts. If you are just talking about employment contracts than you are probably right (except possible for Canada, where there seems to be case law going both ways, so it seems to depend on the particulars of what is in dispute and how the contract is written).