It’s to be expected. My theory is that millennials grew up late enough that they had access to the early Internet, so they got exposed to all kinds of strange cultures and had to learn tolerance and acceptance.
The younger generations grew up with an internet dominated by mega corporations, and algorithmic feeds. Unfortunately hostile states and other bad actors have been very effective at exploiting these mechanisms, causing a strong right wing shift simply due to exposure.
Your brain is strongly colored by what it consumes, of course.
I’m actually okay with semi-centralized. Most people need that to trust a platform, but it still gives you the option to self host if you really care.