As I explored in an article a couple of years ago, a very significant subset of far-right extremist groups explicitly blame "transgenderism" on "Jewish bankers in Davos."
The groups include neo-Nazis, so-called European chauvinists like the Proud Boys, and other hardcore white supremacists.
The claims generally hold that elite Jewish banking syndicates fund gender clinics and medical care for trans people in an effort to destabilize Western Society and help the Jews control the world.
This obvious nonsense isn't something Parker would probably want to claim outright, but her reference to billionaires didn't come out of thin air. Sounds to me like she's trying to play up to the very Nazis she claims turned out to her events by coincidence, or perhaps merely because they wanted to protest against "Aintifa."
Or who knows, maybe she's far enough down the rabbit hole she really believes the antisemitic conspiracy theory.