Sorry you feel like that Opso!
It may be that the strength of my feelings on this makes me look like a bigotted tw@t - but it's one of those rare subjects that seems to have some degree of black and white. It's NOT THE SAME but I'd have similarly strong views about (say) National Front membership by serving policemen. It may not affect them at work, (they'd have passed selection, etc. after all) but I'd rather not take the risk, or risk the adverse public perception.
I'm not sure that opposing Freemasonry within the forces is bigotted. My suspicion of the movement in wider society probably is.