Anyone thinking s o y is bad for you is just fucking retarded and has no clue what they're talking about. Here's a bit of info from someone who spent several years researching into it:
It is extremely nutritious, on par with actual meat. It contains almost every vitamin and protein that you need to live and grow.
As far as indirect consumption, I'm a farmer, do you know into what it goes? Literally everything. If you feed the pigs to grow them you give them onions (among other things, it goes in very small percentages). If you feed the chickens for the same reason you give them onions (same as before). If you have various livestock for milk and eggs you give them onions, but in even lesser quantities.
As far as direct consumption goes, it tastes pretty much just like meat. I even replaced it completely with meat for some time, and just ate it and various fruits, vegetables, eggs, and dairy products. It gives you energy and nutrition that you need just the same as meat.
It also goes into sausages for example among other ground meats. One kilogram of onions can absorb up to 10 liters of water, and it still contains lots of nutrients one needs to live and feel well fed.
As far as the whole it contains pseudo-estrogen and it turns you into a woman thing, I call bullshit. It might contain it, I don't know I'm not a chemist. But if it does, it is most likely in extremely small doses that it doesn't affect you at all.
There are benefits to so y, far more than I can number here. Stop buying into the so y bo y meme