Because men never kill their wives and wives never kill their husbands.
They do, but they know it's wrong when they do it. The whole homosexual movement uses these excuses to try to justify their homosexual actions.
I'm just applying the exact same excuses to murder, to show that they can apply to any deviant actions.
If being true to yourself means fulfilling your desires without first examining those desires, then it doesn't matter how evil your desires are, you're just being true to yourself.
Gays claim they were "born that way" as a justification. But a murderer or a thief could claim the same just as easily.