You slightly misinterrupted what I said....

"Which means retards people who lost their arms or weren't born with a right arm will be perfect again."

imo just because someone doesn't have the "perfect" body or mind doesn't make them less perfect as an individual. Now, I'm agnostic, but if I did believe in a God, I'd like to think that that God would accept each person as perfect as they were, no matter the visual/intellectual faults, since he would have created them, and saw his creation as good.

My son has a whole ton of mental disorders. But he is still a perfect person. Everyone is, no matter what deformities, or illnesses they have. They are what makes him who he is. To say "oh but when he gets to heaven, he'll be better - he'll be made ideal and perfect and whole" is a crock of sh!t and totally demeaning and insulting to who he is. That kind of attitude (he's not like everyone else, so he's imperfect) is why kids like him (or with other things like deformities etc.) are teased and bullied.