Don’t know if pugs/bulldogs are as inbred as the white tigers, but either way, like Zorse pointed out, their facial deformities are essentially the same. The persian cat also has the same squished face as the tiger. Regardless of HOW these deformities came about (whether it was from severe inbreeding or from selectively breeding them like that), the fact remains that the faces of the white tiger, bulldog, pug, and persian cat are all equally as deformed and debilitating. I have the same complaint with the twisted cast. People complain about how horrible it is to breed twisted cats, but basset hounds have the exact same type of leg deformity and few complain about it.
They have been selectivly bred for the deformity, the differance lies with the fact that they are not cast asside and forgotten about or distroyed because of it.
I have no clue what you mean by the “twisted cat” the fact that you are comparing them with bassets I am gonna guess you mean “munchkin cats” which does have the same form of dwarfism that bassets, doxies and corgies have. They belive that it is a lethal gene, TICA does register them though. Lethal genes are not to be played with and a huge number of dog breeds have them, any breed where piebald or merle is present, you cross 2 merle dogs and pups are often re-absorbed, born deaf, blind, without eyes and parts of the ears, or just dead, but all are 100% preventable with proper breeding practices.