Breh according to studies most children of gay parents end up straight.
I used to volunteer with a social work council when I was at university for credits and let me just say the highest offenders for child rape, child molester and sexual abuse is the straight male.
Speak to anyone who has grown up in care or has worked in that field 95% of the cases we dealt with was where a straight male (husband of foster carer, adopted dad, uncle nephew) had raped, abused molested a child. A lot of the girls from age 11-13 used to turn up pregnant because the dad in the house had raped her.
In that field gay men and lesbian aren't a huge risk factor. sad to say but straight men are the biggest abusers of children.