The claim that zinc acts as an AI has been made here before. I searched the web and sure enough the statement appears in several places, mostly ads. The only study I’ve found even remotely similar was on rat livers . Aromatization was greater in zinc deficient rats. Big deal.
All the studies I’ve seen showing improvement in hormone levels from zinc have been on animals or men with either a preexisting or deliberately induced deficiency. The studies show a deficiency is bad and correcting it fixes things. It doesn’t follow that megadoses cause effects opposite of a deficiency.
If an extra high zinc level could significantly boost testosterone, inhibit aromatase or make you rich, we’d certainly know by now. Instead, taking way too much zinc has been shown to have negative effects on health.