In fact, almost 80% of the world’s soybean crop is fed to livestock, especially for beef, chicken, egg and dairy production (milk, cheeses, butter, yogurt, etc).

https://wwf.panda.org/discover/our_focus/food_practice/sustainable_production/soy/

No effects of soy/isoflavones on testosterone or estrogen levels in men were noted.(conclusion of 38 clinical studies)

https://www.sciencedirect.com/science/article/pii/S0890623820302926 :(