A Comm for Historymemes

Is it offensive to suggest that gender dysphoria, homosexual orientation, etc [... are] due to environmental contaminants and modern diets?

Without evidence? Yes. Intersex genetic changes in mice =/= development of transgender people. There is tremendous evidence of gender fluidity throughout history, and tremendous evidence of oppression and silencing of transgender expression throughout the past century (and beyond).

Transgender people still only make up about half a percent of all humans, in a global population that has skyrocketed, globalized, and connected on this issue via digital expression and propaganda amplification.

If, by God if, developmental environment increases the likelihood of being transgender, that would require a long and arduous process of scientific discovery, and is not a suggestion one should make lightly based on a single study of rats.

A hypothesis about a minority's entire existence and prevalence that has very little scientific evidence but a massive body of anthropological evidence against it is best left for scientific pursuit, not social media.