Khandro, you are making the mistake of assuming that because a man sexually abuses a young male child, that man is a homosexual. Not so. If you had read my link you would have realised this but I have C&P'd the relevant section here.
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MYTH # 1
Gay men molest children at far higher rates than heterosexuals.
THE ARGUMENT
Depicting gay men as a threat to children may be the single most potent weapon for stoking public fears about homosexuality — and for winning elections and referenda, as Anita Bryant found out during her successful 1977 campaign to overturn a Dade County, Fla., ordinance barring discrimination against gay people. Discredited psychologist Paul Cameron, the most ubiquitous purveyor of anti-gay junk science, has been a major promoter of this myth. Despite having been debunked repeatedly and very publicly, Cameron's work is still widely relied upon by anti-gay organizations, although many no longer quote him by name. Others have cited a group called the American College of Pediatricians to claim, as Tony Perkins of the Family Research Council did in November 2010, that "the research is overwhelming that homosexuality poses a [molestation] danger to children."
THE FACTS
According to the American Psychological Association, "homosexual men are not more likely to sexually abuse children than heterosexual men are." Gregory Herek, a professor at the University of California, Davis, who is one of the nation's leading researchers on prejudice against sexual minorities, reviewed a series of studies and found no evidence that gay men molest children at higher rates than heterosexual men.
Anti-gay activists who make that claim allege that all men who molest male children should be seen as homosexual. But research by A. Nicholas Groth, a pioneer in the field of sexual abuse of children, shows that is not so. Groth found that there are two types of child molesters: fixated and regressive. The fixated child molester — the stereotypical pedophile — cannot be considered homosexual or heterosexual because "he often finds adults of either sex repulsive" and often molests children of both sexes. Regressive child molesters are generally attracted to other adults, but may "regress" to focusing on children when confronted with stressful situations. Groth found that the majority of regressed offenders were heterosexual in their adult relationships.
The Child Molestation Research and Prevention Institute notes that 90% of child molesters target children in their network of family and friends. Most child molesters, therefore, are not gay people lingering outside schools waiting to snatch children from the playground, as much religious-right rhetoric suggests.