I have a degree in sociology and a science degree (life sciences, ecology and environmental studies)

If you cannot separate sex and gender, then you really have no arguments. Biology is reality. Gender is socially constructed.

You cannot choose your biological sex (yet), but you can choose your gender. Every sociologist is taught this.

There is a plethora of evidence showing how chemical pollution is affecting and disrupting human hormones and animal hormones - feminisation, lower sperm counts, lower testosterone levels...