Just to play the game of "I didn't realize I had been trolled" for a few moments, and as an excuse to use some terrible business vernacular, you would probably want to examine the "value streams" that each service currently delivers. A quick examination would show that specialist teams with specialist equipment are probably better at providing specialist capabilities. Whenever you start homogenizing and emulsifying, skill levels and capability get eroded and reduced to the lowest common denominator. That's why it saves money, we provide everything "adequately" instead of anything "exceptionally". If you think defending sovereignty and sovereign interests should be done by the lowest bidder, losing the RAF makes perfect sense. If you think there's a little more to it than allowing millionaires to pay less tax, then maybe it's not such a good idea.