"If the straight world was as promiscuous and engaged in the same type of behavior with a multitude of different heterosexual partners, and used illicit drugs we would have the same problem in the straight world".
http://www.aim.org/media_monitor/A1014_0_C/
It's true mostly the straight world doesn't have this problem but not ALL girls say 'no'......"Brenda MacKillop, a Playboy Bunny at the Playboy Club in Los Angeles, testified that illegal drug use, group sex, and homosexuality were common in the Playboy mansion and that she began to drink and use drugs to desensitize her mind to the seamy world in which she found herself. This is the world celebrated by the media".
The straight world does have a big problem with other STDs. SOmeplace I read that 20% of the adult population in US was infected with one or another STD. That's comparable to AIDS rates in some African countries, so promiscuity is a problem here as much as it is there.