[ So basically, you want to pretend that homosexuality can be cured, even though there are many, many homosexuals who have gone through reparative therapy and been harmed by it? Why don't you seem to care about how harmful reparative therapy is? Also, mental illnesses are inherently harmful to the person who has them, and they prevent people from being able to live a productive life. You cannot say the same thing about homosexuality, since many gay people live safe, happy lives ]

Having a belief is not a pretense.
Those men who identify as former homsexuals, if they were pretending and I don’t believe they were, would be the one’s who would know.
The existence of failed attempts does not prove the absence of successful attempts. The question is not ‘does it work’ but do people have the RIGHT to try it if they so desire!

You can’t find out if it works if you stop the attempts altogether. =/ Duh.

Would you say that surgery is never successful because sometimes it isn’t? That is your logic. And it doesn’t work. Why don’t you care how harmful surgery is!!! When did you stop beating your wife? Why don’t you care? That’s called a loaded question..

You’ve attributing to me, a pejorative indifference. You are wrong. Please learn to ask a question without assumptions in the question. Recognize before the question is asked that you have made an assumption and ask distinctly for confirmation or denial of that assumption. WRONG WAY: Why don’t you care!?
RIGHT WAY: Do you, or do you not care? If not why. If so, what leads you to your conclusions through said caring.

To answer the questions you SHOULD HAVE ASKED: 
Of course I care. What I have is logical priorities rooted in a fundamental goal of LIBERTY, which dwarfs the kind of emotional blindness you’re working from. You don’t stop someone from doing something JUST because you think it’s bad for them. That kind of logic would justify the outlawing of homosexual activity on a strictly scientific basis.
Are homosexuals free individuals capable of making their own choices? 
Or should reparative therapy by outlawed because they’re not?

There are nuances beyond this dichotomy, but first acknowledge the dichotomy, and the stupidity of the latter.

“mental illnesses are inherently harmful— and they prevent people from being able to live a productive life.”

Although homosexuality can CLEARLY be said to be ‘inherently harmful’ when practiced [biologically or psychologically], that’s not the definition of mental illness. 

A mental illness is a condition that affects a person’s thinking, feeling or mood. Such conditions may affect someone’s ability to relate to others and function each day.

Mental illness refers to a wide range of mental health conditions — disorders that affect your mood, thinking and behavior. Examples of mental illness include depression, anxiety disorders, schizophrenia, eating disorders and addictive behaviors. Many people have mental health concerns from time to time.

We happen to have knowledge on a number of trends among homosexuals. Lesbians have a strong tendency to engage in domestic violence. The Atlantic: A Same-Sex Domestic Violence Epidemic Is Silent: Nov 5, 2013 

Monogamy is basically unheard of among [male] homosexual couples. SLATE: Most Gay Couples Aren’t Monogamous Promiscuity is the norm and due to biological facts creates a much greater risk of STD infections among gay males, which is the reason the vast VAST majority of AIDs patients are gay [or drug users]. CDC warns gay men of ‘epidemic’ HIV rates by Thaddeus Baklinski Mon July 08, 2013

But your definition is wrong. 

If you want to be redundantly clear, one’s mental health is in a state of illness when one is mentally ill, but that’s not what you said. And people with minor mental illness lead productive otherwise happy lives all the time.

Do you really think that the lives of anyone with OCD or Turrets is ruined & they’re all miserable and incapable of being ‘productive’? =/ 

When I put it like that it just sounds silly.