Generation Z is the worst, laziest, most entitled and self-centered generation in history. And then the generation after Gen Z will be the next target.
I've already got a running head start on that one.
Frankly, I agree. I bet you'll see a lot more Millennials vote in 2020 compared to 2016. They'll all be out of college and presumably in the work force (or trying to enter it). And Hillary and Trump were both uniquely terrible fits for Millennials. Any competent and charismatic Democrat should be able to beat Trump among Millennials by ~30 points. The same should be applicable to Gen Z, who, despite all the BS you see coming from the right wing media, aren't different from Millennials in any notable way.
I'd say Generation Z as of right now are probably a little to the right of millennials. While they are a slightly more diverse generation, Gen Z have virtually no recollection of how bad the Bush years were (the oldest barely turning 9 when he left office) and have instead seen their parents struggle primarily in the Obama-led economy. Of course this can easily change if Trump or Pence end up being disasters from now til 2020/2024. Plus virtually none of them have entered college yet; which can shape one's worldview.
I'm hopeful that we'll be a bit more centrist.