S.I.N.= Self-Inflicted NONSENSE.Sin is saying "no" to God. God gave us a free will to choose him. While he allows that,and all that goes with that,he surely doesn't condone it(read the bible,he is quite clear about that). Evil is not "of" God.
If you want to inflict such nonsense on yourself, be my guest. Thankfully, the first words of the First Amendment say I don't have to.