And when they do a "study" that shows that every single person that's ever committed a crime has this magic "gene", I may be a little more receptive. Also, I didn't say genetics play no role in behavioral patterns, I merely made the observation that the commission of a crime itself has nothing to do with "genetics". While people with a certain gene type might be a little more receptive to that type of behavior given the right external stimuli, the gene itself is not responsible and without the aforementioned stimuli, is utterly irrelevant. Not to mention an individual's ability to control their own behavior or the fact that the commission of a crime isn't dependent on such a "gene" or even said stimuli. Someone can literally just one day say, "Fuck it. I'm going to do <something>". There's no logic or reason behind it. No science and certainly no "gene".
As far as ludicrous notions go, the notion that we can "genetically control behavior" is just bat-shit insane.