Just some thoughts, some based on generalities:
1. Gen Z may have more in common with Gen X, which probably isn't surprising given the birth era (Silent Generation-Gen X-Gen Z axis). There are some similarities on this axis.
2. Identity politics is going to fall on deaf ears with the Gen Z bunch. And as each generation "rebels", they're going to reject the horsecrap they've been force-fed
3. They dont have the grandiose sense of entitlement of the Millennials, and may overtake them in terms of advancement due to acquiring competency as opposed to pretending competency.
4. I think the entrenched powers that be (in the US) sense this movement, and its part of the reason for open borders-drown out those who have "caught on" by importing ignorant (not using this word as a perjorative) masses who maintain a culture of dependency.
2 through 4 can be summed up by Gen Z is going to be less impressed by posers and more impressed by doers. The future may not be bad.
I can offer confirmation on your first point as I have worked with some Gen Z kids. They are not much different they way my friends and I were at their age (i.e. they understand the value of work, and, for the most part, understand that they have to pay their dues to advance in the workplace).