While that’s a shame, and means other alternatives are a better choice in that instance, both those apply to dairy production with even worse impacts

I did some research into this recently and it seems there is no definite link in humans. Also, a lot of common foods have phytoestrogen (https://en.wikipedia.org/wiki/Phytoestrogen#Food_sources).

From what I've understood, soy actually doesn't affect hormone levels as much as it itself performs the function of some hormones - estrogen I think. So people who promote soy will (rightfully) claims that it doesn't affect hormone levels but they'll leave out that the effect on human development is very similar to the effect of raised estrogen levels.

I'm not a medical professional though the opinion that I share is the opinion of a medical professional that I trust. There's a lot of money to be made in soy products, though, so like fossil fuels be prepared to find zealots on both sides of the argument who have no problem lying or even just being "useful idiots". I certainly hope that I'm not being one.

I believe it's dose dependent. I've substituted soy milk fortified with calcium for full cream milk in cereal and protein shakes and I love it. My only remaining milk consumption is a small milky coffee most days. Anecdotally I did ask the doctor to include testosterone on my last general blood test and it came back healthy. My belief is that plastics are a bigger disruptor of hormones.

The science in support of the hypothesis that soy affects hormone levels is thin to say the least

yeah that's been debunked AFAIK. The "soy boy" meme is still funny to me though.