Albinism is not a genetic defect just as hypomelanistic,melanistic & other colour traits are not.
They happen naturaly in nature & it is through further genetic breeding that colours are enhanced or changed.
It is normally when weaker animals are bred to other weaker animals that the problem occurs.
Genetic mutation has been happening all the time, it is when breeders carefully improve the genetic line that strong animals are produced.
You could look at many different animals to find where this has happened & the pet bird industry is a classic example.
This is my opinion & just like everyone else is entitled to have an opinion, but there is no reason for bagging others & making a skite of ones self. Just as junglejags knows Simon & Lexy1 has 100+ snakes thats makes everyone an expert.LOL.
Cheers
Ian