I do agree that the problems listed are more on the order of symptoms than fundamental causes. I'm not convinced that anti-realism is that fundamental cause, though it's quite certainly a major confounding factor.

Cory Doctorow in a recent Boing Boing article:

"we're not living through a crisis about what is true, we're living through a crisis about how we know whether something is true. We're not disagreeing about facts, we're disagreeing about epistemology."

https://boingboing.net/2017/02/25/counternarratives-not-fact...

I see the problems as of limits and distributionalism, most fundamentally. That's a longer story.