It is cruel to breed a cat, an animal that loves to jump and run, with such short legs.
This should be illegal and those who breed them must not have a heart. Why would you create an animal that could have such potential health problems and that is so deformed that it can not do the things a normal cat can do.
Breeding all together is something that too often cause the animal to suffer. People are too greedy, they can care less about the animal.