Hi Fatshark your comment is absolutely correct.
I feel I should point out, however, that the queens B+ works with have pedigrees going back many years. The elements of BeeBreed group originate before the second world war. The rules that B+ abides by are very stringent. As a member he has to carry out exhaustive testing on new queens. To breed from them they have to excel in all the criteria laid down by the group. He has to check the pedigree of the queen and the drones on the system and it will not allow mating with related bees. Breeding is done on mating islands in the Baltic and North Seas, or in the case of B+ by II. Even with all these controls there is still the occasional poor queen. e.g. the queen who scores high marks on all the criteria, exceeds the colony average in honey production but has some offspring that do not meet the criteria for calmness. This queen will be culled and certainly not allowed to produce drones or daughter queens.
Having read the BeeBreed literature I understand why a catch-all ban on imports would be ridiculous. I do not disagree that perhaps there should be better scrutiny of the quality of imports. I also think that the BBKA are years behind in their thinking and could have been instrumental in setting up an offshoot of BeeBreed in the UK or something similar.