[Old_Mil]

The authors conclude: "Our study provides population-based, prospective evidence that childhood family experiences are important determinants of heterosexual and homosexual marriage decisions in adulthood."

In other words, the scientific fact remains that everyone is born heterosexual.

[ReignOfError]

In other words, the scientific fact remains that everyone is born heterosexual.

That's reading too much into it. Infants are born asexual. Whether they later identify as hetero-, homo- bi-, trans- or asexual, or exhibit some form of deviancy or paraphilia, probably involves an interplay of genetic predisposition and environmental factors, as do a great many aspects of human behavior.