Humans will be much better off if gays suppressed their homosexuality and had hetero sex only

I must compliment you. You are the first person I have debated on here to actually respond with legitimate arguments backed up with evidence. Now I will attempt to dig through those arguments. Your first point that the secondary purpose is subjective. It is indeed subjective, but your argument was never whether or not I feel like homosexuals are responsible in their relationships thereby providing the necessary support required of a mutually constructive human pair bond. I only stated that sex can be beneficial in the development of a pair bond not that the bond, itself, was beneficial. In other words, if you deny someone the ability to have sex with those that they find attractive, it will be more difficult to develop a deeper interpersonal relationship with others. This does not mean that I am positing that this relationship that will be developed will be better for them, but it only means that without the ability to have sex, the relationship might not develop at all. In terms of satisfaction, you have compared domestic violence among same sex couples to domestic violence among heterosexual couples. While it may be a true statement to say that heterosexual couples are finding a greater degree of satisfaction in their relationships as opposed to same sex couples, the real comparison here that should be made is whether or not same sex couples find a greater degree of satisfaction in their lives as opposed to homosexuals who are not involved in any homosexual relationships. On the issue of mental disorders, again you have compared homosexuals to heterosexuals and I would posit that this is a fallacious argument. Homosexuals are not heterosexuals ergo the comparisons you have made are, literally, apples and oranges. The real question here should be whether or not homosexuals who are allowed to engage in homosexual acts have, in general, more or less psychological problems as compared to those who are denied to ability to engage in homosexual acts. You have stated that "not one study shows gays are more likely to have mental disorders in the most homophobic countries compared to the most gay friendly countries," but the lack of evidence of something is not evidence in itself. This could merely be because not enough research has been done. To offer this point as proof you would need to have a study which suggested that gays are either more likely or just as likely to have psychiatric problems in less homophobic countries when compared to more homophobic countries. On the issue of AIDS, I cannot dispute your claim that gay men have a higher chance of contracting AIDS, but I would disagree with the assertion that if gay men were to somehow magically be made straight, that this would fix this problem. In fact, what is not being addressed here is that were we to assume that gay men could simply become straight, while their risk of contracting AIDS would decline, the risk to other groups would increase. This is based on simple mathematics. The reason that gay men are at a higher risk for contracting AIDS is merely statistical. Statistically speaking more gay men have AIDS when compared to other sexual groups. The reason that the risk to gay men would decrease if they were to no longer be gay is two fold. First of all the group containing gay men would now be absorbed by heterosexual men who already have a lower risk of contracting AIDS. The second reason that this would decrease their risk is that the gay men who have AIDS would no longer be infecting other men, but they would be infecting women thereby increasing the risk to women of contracting AIDS. This being the case, it would actually be of no benefit to humanity, in terms of the spread of AIDS, if gay men all became straight as the risk to humanity of contracting AIDS is statistical and would remain static. On the issue of lesbians' mental health, there are also drugs that fight depression as well. Unless you can provide me with a source which proves that semen is more effective in fighting depression than the various medications we have, this is not a legitimate argument. This would be akin to saying that areas which do not have enough broccoli are more likely to starve to death while taking into no account that those areas have plenty of corn. The rest of your issues dealing with women's health do not offer any evidence that homosexual activity has caused these problems. These are, in fact, a logical fallacy know as post hoc ergo propter hoc. This means that you cannot make the assumption that because gay women have gay sex and are also more likely to be overweight that somehow the gay sex caused this to happen. While it is true that the original epidemic of AIDS was spread, primarily, throughout the homosexual community, I would debate how you could ever offer evidence that proves that AIDS would not have spread throughout heterosexual communities at an equal rate if no gays had been around at that time. By this I mean that you cannot prove that the original vector of AIDS would not have spread just as far and wide if homosexuality did not exist. Also the issue with the increasing prevalence of AIDS in homosexual communities is logical when you consider the statistical evidence. Since more gays already have AIDS the fact that they are consistently contributing to a greater percentage of new infections is merely a result of their increased susceptibility. As I stated before, if we were to ban people from having homosexual sex and force them to have heterosexual sex, based on statistics, this would only increase the risk to all other sexual groups of contracting AIDS, and the overall risk of infection would remain static. On the issue of syphilis, syphilis is curable, http://www.cdc.gov..., and as such bears no continuing threat to humanity. This being said, any arguments which state that gays are contributing to the spread of syphilis are completely invalid as syphilis can be cured. As a final note, any of your arguments which note that gay men are at a higher risk for anything not sexually related are purely post hoc. Your other arguments which are sexually related can mostly be attributed to the fact that the primary vector in AIDS infected far more gays with AIDS than heterosexuals. Had the opposite been true, and had that primary vector liked the ladies a bit more, you would be arguing now that everyone needs to become gay to prevent the spread of AIDS. I will finish with this statement: The best way to prevent the spread of sexually transmitted diseases is the use of condoms and greater education on the affects of STDs.