I think the old system we had some years ago , where 3 Captains asking to be not rostered with an individual got things going . I hasten to add that the FOs could also complain and a skipper could also be carpeted.
This individuals CRM is a disgrace . If , God forbid , he becomes a skipper , will he be happy to have a clone in the RHS ? I think not - more likely a pain and a bully. I've seen them all .
Do yourself a favour ( and everyone else ) and shop anybody doing 'business' on the FD.