Yep, don't think cooperation is possible, which is probably the point.
But a few people will be shut out, so what do they have to gain by cooperating with their own being shut out?
Either the group makes promises, which the group isn't doing, they pick someone at random to punish, they try to blackmail someone, or they try to bring down the system that is establishing itself somehow.
Only Gendo and Calamitas have claimed that they want to bid all their money on the same thing. Everybody else has either claimed without conflict, or is chosing not to claim, which we have to assume means they don't think they will be in conflict, since there is zero point in making a conflicting bid as anything else than retribution or blackmail (which doesn't work if you don't talk about it first).
So yeah, the only people I would expect to see arguing are Calamitas and Gendo, right now. Or else people aren't checking the thread, but then what can we do.