Fortunately for me, that isn't an argument that I made.  I can't even see how you came to the conclusion above by distortions of what I said, unless you just didn't bother to read them and just jumped in.  I would agree that all humans are equal under the law, but certainly not identical.  Again, it's not relevant that one person can be more influenced than another.  It's a prerequisite of an adult that s/he be able to rationally control their own deviant tendencies regardless of whether those tendencies are the result of nature or nurture.

If you ate lead paint as a child, and then go out a do crazy things as an adult, is that cause and effect?  Clearly it is not ...