It's so hard to tell....sometimes.
I dont know about that- A few years back I was unfortunately enought to go to a local park on the same day as a lesbian gathering. They were playing this hideous propaganda and I walked over to ask them if they really believed this and they scared the heck out of me. Some had facial hair (and boobs) and pretty much ALL of them looked, talked, and acted like men.
And scary men too - that I would not want to cross else they kick my ass (and I am 6'4 220)
since that day I have become convinced there is a genetic factor where there is a female with just too much male enzymes or chromosomes or something....