Hmmm, never heard an older in-law say "That company made the bombers that blew up my house!" before boarding a Boeing to travel overseas...
Until Airbus began production, there really wasn't much of a choice, was there? Your analogy would be more on-point if one of your elder relatives was an airline executive who had a choice to either buy aircraft from the company that helped blow up his house, or shop elsewhere instead.
FWIW, many American WWII vets wouldn't own a Volkswagen, either. These sentiments are, of course, fading with time.