Finally - definitive science that proves that white tigers are not man made - they are not a weakened mutated species of regular tigers. Scientists in China have isolated the gene for pigmentation that makes white tigers "a rare variant of the customary orange Bengal sub-species".
There are problems with inbreeding due to the sub-standard conditions in many zoos and "sanctuaries" but this is not specific to white tigers - it exists for many captive animals. If you want a pulpit to stand on - better standards in wild animal care and worldwide regulations on captive breeding are good places to start.
Check out the article: [link]