Notice that the prolific Jason Malloy of GNXP has already made clear to Ron Gunhame of the Inductivist blog some of the heartening empirical statistics on gay promiscuity and its relation to gay marriage, to which he has not yet responded.
In particular, Jason finds in his analysis of the GSS data:“I have no idea if there is a faulty assumption somewhere in here, but at face value, this data shows the sexual behavior of homosexual males is actually nearly identical to straight white male sexual behavior. Most shockingly: gay males are just as likely to have one lifetime sexual partner as straight males!
Soul Searcher was refering to a post showing that homosexuals are less likely to think that marital infidelity is wrong. I never did replicate Jason Malloy's analysis, but let's do it now. I'm not sure if I'm doing it precisely the same way he did, but let me lay out the details.
I limited the analysis to men ages 45 and over since the number of different sexual partners has slowed down by that age. Homosexuals are defined as those only having exclusively male partners in the past year (SEXSEX). Unfortunately, we don't have a better measure available.
For straight men, it's only having female partners over the same period. I looked at how many male partners gay men reported having since age 18 (NUMMEN) and how many female partners straight men have had since age 18 (NUMWOMEN). By the way, these questions were asked 12 different years (1989, 1990, 1991, 1993, 1994, 1996, 1998, 2000, 2002, 2004, 2006, 2008).
Heterosexual men (N = 2,993)
Mean lifetime partners 17.71
Percent with only one lifetime partner 20.2
Gay men (N = 80)
Mean lifetime partners 46.05
Percent with only one lifetime partner 15.0
I don't know why Jason Malloy's numbers are different from mine. He wouldn't have had 2008 data, but that should make little difference.
According to my analysis, the gay lifetime mean is 2.6 times higher than the straight mean. Both means are inflated by a few men who have hundreds of partners. I don't see where I can get a median calculated.
By contrast, you can see that the percent having only one lifetime partner is not unusual for either group, but it is a little higher for heterosexuals.
Keep in mind that the questions were asked of men from 45 to those into their nineties, so some were young men in the 1920s. I wouldn't expect gay men to have been as promiscuous then as they are now.