No, it's not. The start of the "as many as 19" range is two lifetime sexual partners. For a 25- to 29-year-old man, two lifetime sexual partners is hardly promiscuous.
Even 19 lifetime sexual partners isn't so promiscuous as to cause alarm. For a 25-year-old, that's an average of one new partner every four months since his 18th birthday.
But it's interesting that you consider that threshold to define "extreme promiscuity." People who have had between two and 19 sexual partners are "extremely promiscuous"? That is extremely interesting, because the entire male homosexual sample in the Bell & Weinberg sample had more than two lifetime partners.
So there's your proof of 100% universal pathology. By your own definition.
The cumulative total of this scientific evidence is overwhelming. It's extremely difficult (and expensive) to collect a survey sample that is truly representative and random. I think that in light of the herculean efforts they made to collect such a sample, Bell & Weinberg are being far too modest.
The incarcerated samples I've mentioned here are both consistent with each other and indicative of an incidence of child molestation among homosexuals and bisexuals that is vastly disproportionate. Considering the number of these studies and their tremendous degree of disproportionality, they shouldn't be dismissed in such a cavalier manner.
What we are seeing here from the homosexual community is the proverbial tip of the iceberg. We don't need sonobuoys producing a detailed 3D rendering of it, in order to be able to tell that it is an iceberg, and that we should steer clear of it.