A lot of normie voters care but they are at least one if not two generations removed from the median TikTok user. Generational divides can be pretty stark and it's clear that future generations increasingly don't care as much about internet privacy. In fact, being a public figure on the internet is a good thing these days since you can make a career out of it.
Again, I don't think it is ever again going to be mainstream to care about the privacy thing.
But I think older people do care now about the potential for hostile foreign propaganda affecting our politics, and I think the younger folks who (reasonably!) care more now about losing their favorite entertainment app will grow up and understand the propaganda problem when they're older. That is, I don't think it's a generational thing, I think it's an age thing. And politics is driven by people over the age of 30.