I could hardly imagine anyone denying that major stress during pregnancy is unhealthy for the development of the child. And a signiicant prenatal influence on sexual orientation is by all means worth considering as part of the entire picture. But identifying a modest but significant factor is no where near the same thing as finding a primary factor in a majority of cases. gfs has personally admitted knowing the identified genetic markers which have been shown to correlate much more significantly with orientation. It's good to know that gfs would never let an agenda bias his interpretation of evidence.