Morose humor is simply a way to deal with tragedy and sadness. It's often the most we can do for ourselves or anyone else in such situations. Seeing as in this situation especially it would require to impress upon people the importance of Being educated in general and about specific things that they have no interest in. Both of which are generally out of our control. So we all just default to recognizing the absurdity.
Don't get me wrong, I'm not faulting you or anything... it's both absurd and sad that major alarm bells have been going off about Trump for a very long time and a lot of people don't notice or look the other way.
I didn't think you were :-) and unfortunately Trump is just the most recent symptom. It's been going on for longer than even my parents have been alive. And they were born in the late 40s and early 50s. At least here in the US.