Screening for "the Gay Gene"

Christians have rightly expressed skepticism toward prenatal screening, particularly since it is often used to provide information to justify abortions.  But what if the screening is used to remedy disorders, and what if the "disorder" in question is homosexuality?  Leading evangelical Albert Mohler suggested that such screening would be a good thing.  Now (former) Ave Maria University provost Fr. Joseph Fessio says:

“Same-sex activity is considered disordered. If there are ways of detecting diseases or disorders of children in the womb, and a way of treating them that respected the dignity of the child and mother, it would be a wonderful advancement of science.”

This is not a good road to head down.