but I don't think this is Millennials and I'm a little frustrated by people continuing to blame Millenials for Gen Z's crazy bullshit.

I am borderline Gen Z/millennial, depending on who you ask (some definitions include up to or even past born in 2000). I've seen some of this behavior in people a few years older than me, too, not just my age and younger. That would be the youngest millennials. It's also worth keeping in mind that many people take 5-6 years to complete college, at least here in the US, and that community colleges have a wider range of ages-- so gender identity beliefs could get promoted to somewhat older students, as well.

That being said, I think my generation (Z) is definitely leading the charge...

These are the kids that I remember thinking about when I was in high school, coming up into elementary school when sports became a "nobody wins, everyone gets a participation trophy" affair. I remember thinking, "Wow, those kids are going to grow up and be so entitled and think they're so special with no good reason for it." And here we are.

Honestly, I think social media is more of a factor behind the transgender trend than anything else. People my age seem anxious and depressed, and turn to in-groups for reassurance and support-- which they/we struggle to find elsewhere. Then they see this in-group, the "LGBTQ community," a bunch of their friends are in it and everyone in this group seems like they're all positivity and wholesomeness, and are like, "Hey, I want in on that." Then it's as easy as talking yourself into considering that you might have gender dysphoria and BAM, you're a Valid and Accepted Trans Person. Support system crisis averted. *

*^{except it's not}