Stone cold serious. Our physiology is heterosexual. Any behavior contrary to that is the result of mental illness. There is no genetic or biological cause for this behavior. It is entirely chosen as a result of trauma. Heal the trauma and the behavior goes away. Therefore anyone exhibiting this behavior is operating under influence of a severe debilitating illness and should not be allowed to enter into contracts. They are just not capable of understanding them.
Now admittedly this particular disease mainly effects only one facet of their behavior but that one facet has been shown time and time again to bleed over into everything else.
To the mentally diseased ('homosexual') person, sex is everything they are.
Your definition of mental illness is rare and I'm sure you can find someone to agree with you or perhaps some fringe author. People that can function in society, have a grasp of reality, and engage in everyday social intercourse are not mentally ill. They may also be democrats, but it's propaganda to apply the term mental illness to them.
I think my sister is crazy to marry who she married, but I really don't think she's mentally ill.
You are part of the clique here who can say anything about homosexuals and get away with it. As long as you have the protection of the owner.