In Australia you would need to be a veterinarian to be considered a specialist, so I am unfamiliar with what that means for an American. What does being a certified avian specialist qualify you to do?
Please remember, you just got your qualifications, that doesn't mean you know everything or that you know more than anyone else who has years of experience with birds. Nor does it mean people don't have the right to question what looks like an unethical situation.
And I too got the impression that you bought these birds with the intention to breed them as soon as you could. Actually red flags went up when you said clients wanted babies.
If clients want babies from you because they are afraid of a lack of quality from pet shops, then shouldn't you provide them with high quality babies produced from high quality healthy parents?
I know you are offended, but rather than be offended perhaps you should take a look at how quickly you are rushing into things
Take a step back and look at what you have written and see where everyone is getting the idea you were going to breed these birds... and breed them as quickly as you can. I wouldn't breed them at all personally, I would consider them pets. But I find it unethical to breed an animal from a rescue/rehoming situation full stop, whether they are healthy or not.
I think you went on the defensive because you know its wrong to breed these budgies.
Don't you want to put yourself out there as a high quality professional? Do you want to portray yourself as someone trying to make a quick buck? In your shoes, I would go get myself two quality pairs from a quality breeder and set them up in some nice flight cages with heaps of room. Quality starts from the ground up, you can't start with inferior things and expect quality to come from it.
I don't mean to further offend you, but what you need to understand is that from our point of view as people who only see what you write to us and don't know you in person... we see someone who rushed off to get a certificate in bird care and is now claiming to be a specialist professional and jumping into breeding unhealthy birds. If thats not the case, don't get mad (it looks defensive and unprofessional) simply show otherwise