But in a broader sense, the existence of homosexuality has alleviated the problem of different sex ratios at birth to some extent. In some areas, the birth rate of boys is much higher than that of girls, so in the monogamous environment of these boys, judging from the total population, there will always be people who can't marry women. The stability of personal income and family relationship is an important part of social stability. Some gay men can establish intimate relations with the same sex, which actually plays a role in "stabilizing family relations". And vice versa (if the birth rate of girls in a certain area is much higher than that of boys, and vice versa)
Another advantage is to ease the pressure of marriage and childbirth. Because in a society that truly recognizes homosexuality, homosexuals will not feel pressure because of childbirth, and they will give up their jobs to have children without reaching a certain "warning line" age.
The third benefit is ... After the second benefit, fewer children can reduce the production of diapers? Is this environmentally friendly?
The disadvantage of 1 is that unclean X behavior can easily lead to an increase in the incidence of AIDS or other X-related diseases.
The second disadvantage is that there are more and more homosexuals and fewer families with traditional structures. Pension will become a problem in a few years. Because the population of the younger generation is too low, it will increase the burden of national social welfare and old-age care. This may also lead to the younger generation having to pay more taxes to protect the social welfare of an aging society.
The third disadvantage is that children's toy factories and the like are going to close down, and no one wants children.
P.S. European and American experts will not study "the benefits of homosexuality" ... because sexual orientation is a subjective choice judgment, and it cannot be simply judged by "good" or "bad". Just like vegetables and radishes, no one can prove that liking vegetables is better than liking radishes. If you really do this research, it will be discrimination. But we can analyze the positive or negative significance to society by analyzing the relevant social situation.