I would suggest that an acceptable compromise would be simple equality of opportunity.
Like Captain Pulitov, I will send each and every member of BACC a handwritten letter of thanks if they could even produce evidence that they had suggested equality of opportunity (ie ability to bid for LHR jobs like some of their colleagues) to the BA management they negotiate with. In BACX we realise fully that BACC or BACXCC will not achieve all their aspirations. However, it would be quite refreshing to feel that BACC had made the effort, even if it failed.
I will go further, I will admit

that every post of mine disagreeing with Tandem was inaccurate

, and that he knew and knows more about BACX than I ever could. All he needs to do is support the idea of equality of opportunity for pilots within the same Company. I do not mean opportunity for BACX pilots ahead of secondees, just the same opportunity according to rank and seniority. If he can't (or won't) do that, I'm sure judgements will be made accordingly.
I hesitated to post here, because of the tirade that reasoned argument usually attracts from the secondee readers. Hopefully however this time there will not be more of the usual nauseating Blairite smirking, insincerity and duplicitous language one becomes accustomed to from TR and his friends.
Inshallah.