Who is promoting transgenderism?

Well, one indisputable proponent is California State Senator Scott Wiener.

Hear a very brave young woman, Layla Jane, speak about the harm the transgender ideology had on her:

https://youtu.be/RPR9ldoaQj4

And yes, she is specifically speaking to and referencing Scott Wiener, opposing a bill he sponsored.

For another person's view on this, read

https://substack.com/@susanscheid/note/c-230761470?r=3fzt75

For a rather extensive discussion, see 

"How a Handful of Billionaires Created the Transgender ‘Movement’: An Interview with Jennifer Bilek"

https://europeanconservative.com/articles/interviews/how-a-handful-of-billionaires-created-the-transgender-movement-an-interview-with-jennifer-bilek/

This is republished at her substack blog:

https://open.substack.com/pub/jbilek/p/how-a-handful-of-billionaires-created

Three other articles on this:

https://firstthings.com/the-billionaires-behind-the-lgbt-movement/

https://open.substack.com/pub/geraldposner/p/the-transgender-money-pipeline?utm_source=share&utm_medium=android&r=3fzt75

https://www.theamericanconservative.com/foundations-are-setting-the-transgender-agenda-and-targeting-children/