Homosexual behavior probably does not constitute a mental disease. Most people are capable of it under certain circumstances but rapidly revert to heterosexual behavior, involving no interference with normal reproduction, after the circumstances are removed. Homosexual behavior under extreme circumstances may be nature's means of releasing the powerful sexual energy when circumstances frustrate it.
Some cases of homosexuality appear to be genetic. This does not make it not an illness, any more than Down's syndrome, hemophilia, or any other genetic disorder. Whatever the lesion, it interferes with healthy function.
However, many cases of homosexuality, in people who are not genetically predisposed to homosexuality, result from circumstances, causing a lesion which interferes with healthy function of the reproductive system. Some of the most miserable people I have ever known have had this affliction. It can result from sexual molestation in childhood, some other childhood trauma, prolonged homosexual activity in childhood, addiction akin to drug addiction, and perhaps other injuries.
“Some of the unhappiest, most depressed, most anxious people I have ever known were those trapped in gender dysphoria.” I too have noticed this. Those who don’t specify as male or female ..... majority are on multiple psychiatric meds (as if enough of the population is not already on antidepressants) and often on heavy doses and anti-psychotics. It’s a sad state of affairs the left has created with this young generation.