The BA pilots voted in their own interests - they're not a charity and BA is not a refuge for pilots from bankrupt UK airlines. However you don't seem to be fully cognisant of what your options were. They were:
1) Go bankrupt and join the dole queue.
2) Join IAG as a standalone and play your own personal part in turning around the £1M per day losses of bmi.
3) Join BA and get some top cover while BA sorts out the basket case which is bmi. The BA pilots are paying for that top cover. To expect whistles and bells on top is dreaming.
There's nothing uncharitable about the BACCs interpretation of the 'integrate' vote. It's exactly the interpretation we voted for. If you don't like it then go whinge to the Bishop or Lufthansa. It's their fault you're bankrupt, not ours.