Zizek’s view that the current transgender discourse is nowhere near radical enough

Could you link me to a summary of Zizek's position that you're working from? I found multiple articles and Zizek is not exactly known for being a concise person. From what you're saying, it sounds like he needs to read more trans theory based around liberation.

I'm a Marxist, so yes, I understand class as a dimension that intersects with other components and that class is not the only or even (in some cases) the primary driver of oppression. I understand abolishing the class system would not somehow magically resolve systemic racism, misogyny, colonialism, etc.

I've definitely run into class reductionists in the wild. See: stupidpol. They tend to be white straight dudes whose main experiences with oppression/inequality comes from class. This often leads to an extremely narrow understanding of intersectionality that stunts both their personal growth and their utility as socialists.

To be clear, there are lots of good comrades with that background, it just requires working through the contradictions created by one's privilege. Similar thing for a wealthy person who becomes the good kind of class traitor. It's not difficult, you just have to be okay admiting you don't knowing everything, ya dig?