Pointing out their hypocrisy to hypocrites achieves nothing. You cannot shame the shameless.
But what you can do is to snub the organizations that encourage hypocrisy. For a good example, school swimming. If parents and girls want to compete in swimming, they should turn down academic competition and hold their own, excluding males.
There are lots of competition size pools, and parents could easily and cheaply buy up a bunch of ribbons and other awards, use regulation stop watches, etc. And ironically, since the local media doesn’t usually follow girls swimming, they could buy a full page “advertisement” of their girls accomplishments.
And absolutely nothing for the school or the trans boys, denying them the attention they whorishly crave.
What you posted is a great idea. Should be done in communities across the country.
But first, humiliate the leftists. Make them live up to their own fake standards. Alinsky 101.