He misses the point. Adults can be transgender if they want to. People who are transgender are protected under the law.
But no one can change sex, a man is not a woman and vis versa.
A man identifying as a woman should not be in women’s sports, be a health care worker for vulnerable girls and women, be allowed in women’s prisons, refuges, rape crisis centres, sports, all women’s short lists, leading Girl Guides, head of a rape crisis centre.
Children must be left alone.
A large proportion of gay people are gaslighted into thinking they are trans - they may well have, in many instances, been influenced by homophobia.