Free speech is different from therapy, though. Consider the girl who has just been convicted for encouraging her boy friend to kill himself. Technically, she didn't do anything but speak to him, it still was found to be illegal. Therapeutic relationships and practices are a bit like that. If you tell someone in a non therapeutic environment "hey, stop being gay", that's protected free speech. But in a therapeutic setting, dealing with a vulnerable person, interacting with an authority figure, and especially where the patient hasn't given consent, and/or isn't free to leave or disrupt procedings, that's a very different case.