Even over the course of my life (36 years now), people have gotten more and more cynical and nihilistic. Social media, in particular, added gasoline to that fire.
What's particularly ironic is that I have family members who, back when FB first burst into the scene, would warn me against it and that it was bad. Fast forward to today, the roles are almost inversed lol
Regardless, Donald is just the perfect leader for the "LOL, nothing matters" era that we find ourselves in. Distrustful of others, negative about the world, etc.