Sorry Crewmeal
You are talking cobblers.....
BA and Virgin do not wish to dilute there service from the UK, why would they. In the past they forced everybody into London either by car from Birmingham or Shuttle from Manchester, NI, Scotland etc.
Certainly at Manchester they have have come badly unstuck, as I understand it QR, EK , Eithad are all full so they are losing a massive amounts of traffic.
Not sure about BHX because it does tend to suffer by the location of Heathrow and Manchester but certainly in the NWest there us clearly lots of money to be made......