As far as the feminine thing for soy goes. I believe it raises your estrogen levels, but I've been a strict vegetarian for 5-6 years now and it hasn't feminized me yet. I don't work out for muscle mass just for martial arts, so I can't comment on that, but I can say I haven't wavered more than 5 pounds since high school. I'm evidence that it won't harm you, but it probably wont take you where it seems like you're going either.
Black men walkin' wit' white girls on they arms
I be mad at 'em, as if I know they moms
told t' go beyond tha surface a person's a person
when we, lessen our women, our condition seem t' worsen
Common - Real People
George Bush does not care about black people - Kanye West