Most studies I've seen from disinterested researchers indicate that the two largest predictors of whether a guy grows up to be homosexual are: 1) having been sexually molested by a male at a young age (and the more the molestation occurs, the more likely to end up homosexual), and 2) having a loveless or hateful relationship with ones father or older brother. Being unable to establish healthy relationships with other male children also is a statistically significant predictor. Finally, in society today, some are actually actively encouraging kids to engage in homosexual sex. This is an indirect form of molestation, and contributes to the increase in homosexuality that we see. - - If you want your kids to be normal (heterosexual), you can increase the odds by: never lettting them be molested by anyone, establishing a loving and healthy relationship with them, teaching them that homosexuality is wrong and disordered, telling them at an appropriate age some of the digusting things that occur in the common gay lifestyle (like anal intercourse, promiscuous sex with anonymous partners) and helping them to have healthy 'guy' relationships with male kids. Sports or Boy Scouts are good ways to help with this.
some are actually actively encouraging kids to engage in homosexual sex.
Apart from those few, predatory priests, nothing like this is being encouraged in any catholic group I've encountered. Catholic groups like Dignity (which isn't approved) - and maybe I've got the wrong label - there are two homosexual groups, one promoting chastity and one promoting acceptance of the active homosexual lifestyle.
What is cradle Catholic family life like? My family ties are protestant and although there weren't many brothers, there were definitely some good role models. I don't know of any homosexuality in my protestant contacts.
In my recent family tree, there are several males who never married. If they were homosexual, they were probably closeted.