Mate, your argument ain't with me.

I don't fucking like it much, either, but I'm living here, so I'm playing by the rules of the house...

(Although I'd point out that normal people aren't born with it. People can get along pretty bloody well these days when they're born with limbs missing - is that an argument for chopping the limbs off healthy people, because aother can get along fine without them? But we're getting side-tracked into the kind of discussion of ethics and hypotheticals that's only fun after a few drinks...)