I am sincerely touched that one may have so much faith in their god so as to completely disregard their sexuality in all situations. This is a very hard task, for the human being is inclined to gravitate towards sexual things, and surely it is quite difficult to stay away from these. However, it is immoral and unhealthy to ignore it completely.
Even from a biblical standpoint, one may have homosexual desires and thoughts. It is merely stated "man shall not lie with man as he does with woman". It does not say that he may not have thoughts of any men in this context, or even kiss a man. In fact, this is not necessarily an important command; it is not emphasized. It is emphasized just as much as the command of not eating pord, which Christians do not follow.
Therefore, this act of renouncing one's sexuality is not necessary. However, it is dangerous to ignore it...this act can easily cause severe depression and could lead to suicide. In addition, the Bible does respect the need to honor one's self and be true to it, or else it would not use such a standard to express the extremely high need to honor thy neighbor. In conclusion, the ex-gay "movement" should be done away with to make a better world in respect of God and in respect of the human race.