Well said Laura.
That anti-soya website (nice pic of parrots btw) is in my opinion an example one of the many conspiracy theories out there - a food version of the Da Vinci Code. There are so many of them because anyone can publish anything they like on the internet, at any time - the amount of information out there is almost infinite, but it doesn't mean it's true.
The Japanese have been eating soya for centuries and were the healthiest people on the planet till they got Western fast food.
As for me I'm happy to continue eating edamame followed by tofu stir-fired in rapeseed oil, or perhaps a juicy chargrilled steak - definitely with a large glass of wine.