Alex Jones was partially correct, they are in fact turning the frogs gay, and this extends to people as well.

Specifically, endocrine disrupting chemicals, which are commonly used as plasticizers and flame retardants, disrupt your endocrine system. I.e. they fuck with your hormones.

Exposure to environmental stimuli, including such chemicals, can cause changes in sexual behavior and characteristics. This was the driving force of the plot of Jurassic Park.

This cannot be proven without seriously unethical human trials, but exposing a every other animal to EDCs during development can and does cause changes in sexual development.

Edit: other pollutants are causing societal effects as well, there was a study on crawfish out of NC a while back that found significant behavioral changes (less aggression, more foraging) among males that lived in a stream which was exposed to sewage, and therefore low level antidepressant medication.