Pugs with breathing problems due to the results of breeding, and woman with large breasts unable to run pain-free without a bra are the result of effectively the same process.

So why is one immoral and not the other? Why do people vocally discourage people from breeding pugs or other dogs with breeding issues but you'd never hear anyone claim women with large breasts shouldn't have children?

I'm not suggesting anything here myself either way. I'm simply posing the question and would like to hear the reasoning each of you might apply to rationalizing this discongruity.