This is a common misunderstanding among people who know nothing about these birds.
You make an assumption about my knowledge, I know and realize what birds are created for and it is not in my opinion to be in a cage in someone's house. I have seen one too many of these exotic birds abused.
Of course, no animal, bird or otherwise, should be abused. Ditto for humans. But, just as removing guns does not stop violent crime, not selling animals in the pet trade does not stop abuse.