The problem is that Airbus will have to give more workshare to foreign countries for political reasons. See how the Chinese are blackmailing Airbus. This workshare will always be on the cost of some blue-collar people (and potentially white-collar, too, in the long term) in Europe. The position of the British is definitely weakened, while it is not necessarily eliminated. The British government will surely continue to “pure” money in Airbus. A government can’t afford to lose high-tech jobs.

All sorted if the Partnership with Boeing Aerospace comes through.
As sad as it may seem, a military connection for BAe will secure far more jobs than any project with Airbus ever would.
The British government may not need to “pour” money into Airbus as you suggest.