Although homosexuality has been around for thousands of years and in all corners of the globe, it is by no means natural and by that I mean natural in terms of science, biology, and physiology. This is has nothing to do with morality, one's choice/preference, or rights. That is a completely different discussion. However, homosexuality is not natural nor a normal act for the following simple, scientific, and and unquestionable facts:
1. The Male body contains one main organ for sexual intercourse and that is the Penis. The penis was designed or created for insertion inside the Female Vagina. These two sexual organs were created or if you will designed to come together both biologically and physiologically. During Intercourse, there is natural lubrication that takes place during the act and physical changes and reactions to both the Penis and the Vagina that will ultimately end in the release of the Male sperm inside the Female Vagina (if the two involved are planning for pregnancy). This is completely absent in homosexual sex. While you can obviously insert a penis into another man's anus, it simply does not make sense physiologically because the anus was designed or created for bodily fluid and waste extraction, also, unlike heterosexual intercourse, there is no such natural lubrication taking place and that is the reason why homosexuals are constantly searching for the ultimate lubricant, which does occur naturally in homosexual sex.
2. Heterosexual intercourse is the ONLY mean in which to continue the natural growth and continuation of the human species. Homosexuals are unable to reproduce and by nature that means they contribute nothing to the continuity and more importantly, evolution of the human species.
3. On the other hand, many homosexuals have indeed admitted to having heterosexual sex and even being in relationships with the opposite sex at some point during their lives.
4. In 1973 the American Psychiatric Association declassified homosexuality as a mental disorder and many doctors (not psychologists) do believe that according to medicine and biology, wit the above. This was later changed as not being so in the mid 1970's. However, strong political pressure as well as other factors contributed to this change and not science.
5. There have been many successful therapy treatments in which homosexuals stopped practicing that life style and were able to form and hold successful and health relationships with the opposite sex, including marriage.
6. There has been absolutely no proof whats so ever regarding a "gay gene", heredity proof or a different mental make up of any sort or kind or t any proof of a different biological make up nor function anywhere in the human body that points to homosexuality as a natural, biological process. Any esteemed doctor or scientist can tell you the same, however, no one wants unfriendly media attention, nor stigma that can ruin one's career and reputation.