I honestly have a hard time finding that article very valid.
To begin with, soy is not estrogen. Soy does look like estrogen in a sense, as it binds to the receptor of the cell where estrogen would normally bind. Soy would almost be more of an estrogen inhibitor if anything, it would not promote estrogen production. Since soy is not estrogen, it cannot carry out the same pathways the real hormone would carry out. It only has estrogen like properties.
One reason I know this to be true, besides discussing it someone with a PHD, is that it is believed soy products will decrease the chance of breast cancer in women due to soy binding to these estrogen receptors on the human cells. Your body then thinks it has plenty of estrogen, and decreases the amount of estrogen production.
Plus, if you ask gay people, they will tell you they were born gay
Oh, I also totally disagree with his statement that women are default, assuming that more women are born than men. That is totally false. More men are actually born in this world, but men's deathrate is higher, and I believe by 16 or so it's close to 50/50 ratio of men to women, and as aging increases women edge out men 51% to 49%. I think it's a survival trait that more men tend to be born, as we are, evolutionarily speaking, the fighters, the gamblers, the hunters, risk takers, protectors, etc.