Just some counterpoints:
> 3. Politics was much less divisive back then. There was political debate, but again a bit more "abstract" and theoretical. I'd say the moment when this changed was 2008s US presidential campaign.
At least as one of the "first ones" from the AOL days (too young for the Eternal September, old enough to have gotten online too early) - most of "us" were young and didn't care about News. We were more interested in Mr. Burns getting shot and whatever internal drama was happening in our online fan clubs. I remember 9/11 happening, but instead of switching websites I continued to read online webcomics and my "Learn VB in 24 Hours" book.
A lot of us were just younger then and our social groups were more focused on other things. I am in an indie game Discord right now that's clearly not my demographic anymore. I don't interact, I'm just there for game updates. But, those kids are making their own memories right now. I think as adults, we just sort of ~forgot~.