It's not accepted as a standard treatment, that's the key. The second key point is it's used as an excuse for violence. Same thing with pray gay away type treatments to convince men they aren't gay. Those are now illegal in many states.
Similar things, bogus classes on checking if you are high - like your eyes move in a certain way, or when driving your tire touches the white line. Cops take these classes and use them for justification. See also, pulling drivers over if they are certain minorities (driving suspiciously).
