That's rationalization. There are definitely defects that do not have any trade off. It is bias in itself to think that every genetic trait has a balanced posit

That's rationalization. There are definitely defects that do not have any trade off. It is bias in itself to think that every genetic trait has a balanced positive and negative. It's the apple and oranges argument people often use with programming languages. They think every programming language is just a tool in a tool box, good for one thing bad for another. They preclude the possibility that certain programming languages can be good for almost everything or that other ones can be complete crap for just about all applications. There is no logical reasoning that precludes either of the aforementioned languages to exist. It's illogical and it's biased to think everything is fair and balanced. Logically speaking, executing the people with clearly defective traits is overall beneficial to society. There's no other way to reason around this. You can try but it'd be a biased endeavor as your specifically searching for reasoning to counter mine for the sake of creating the contradiction itself.