Just a question... please don't get offended?

Because it is better to "kill" the puppies before they are born,as chances are,many of those puppies will end up in a shelter,only to be euthanized anyway.And when they are in the womb,they just lose consciousness when the mother dog is spayed,and they then suffocate when the uterus is removed. This is far less traumatic and way more humane that stuffing a litter of 8 week old puppies into a gas chamber,or sticking a needle into their tiny veins or heart. Why let them be born only to be doomed a few weeks later? The better choice would be to spay the dog before she ever comes into heat.