Your love for your birds is admirable. And your knowledge is great but you know the risks even if you won't accept it. If you are happy with the risk to yourself then fine but don't play it down to someone who may not be in possession of all the facts.
I researched this for three years before I bought one.
I talked to pigeon breeders, owners of birds who have had individual birds inside for as long as 19 years, and a pulmonary doctor who had only seen one case, and it was someone who did not own any birds.
I read through all the articles, even talked to someone who developed the disease themselves (someone who raised around 500 budgies in a closed backyard outroom for the show fancy.)
I also have met some people who keep more pigeons than i think is reasonable indoors in very dirty conditions for years and they did not have symptoms either. Those who do likely have an underlying predisposition.
I determined that it is a very, very small risk to keep a pet pigeon inside - but yes, it is one theoretically. So is getting struck by lightning. It is also risky to keep budgies inside by the same token. Unless one is highly allergic to the specific protein, which they would know almost immediately, they are unlikely to have any issues. Keep an air filter on, dust around the cage, spray the cage papers before cleaning to keep dust from getting in the air, don't use loose bedding, pick up dropping immediately, vacuum daily and let the bird bathe at least twice a week to limit their dander.
They are still the most rewarding pet bird I have worked with and I will recommend them over any other bird in their size class, with the disclaimer that they do make a mess proportional to their size. It is less, though, than larger birds conventionally considered pets like cockatoos which produce enough dust to coat the walls of their cages in just a couple of days. That is not good to breathe in either.