Plastics could be part of it, but three years ago Cleveland Clinic said it could also be weight, sedentary lifestyle, poor sleep, diet, and alcohol

https://health.clevelandclinic.org/declining-testosterone-le...

And anecdotally, I've still been forming goals and shrugging off failure five years into suppressing most of my endogenous testosterone with exogenous estrogen

Have you had your levels checked?

Well that's great for you, but I was making a generalized statement about the role of testosterone, scientific data showing huge decline, and more and more studies linking it to plastics. We can't just alter a key hormone within the span of a few decades and shrug it off. My levels are great for a 40 year old

And yes there are certainly other factors, but that's not what the original comment was talking about?