Those with an understanding of history and paying attention to what is actually going down are concerned. There need to be more of us.
But then, we are just seeing what I and a LOT of people paying attention last summer were expecting to happen now.
Having seen this play out in our own lifetimes in the past is a big help.
This is just the beginning. With every passing day, more and more people will be "concerned" as this affects them personally. First in minor ways, then in serious ways.
I will avoid discussing the cause of this pending catastrophe as that violates forum rules (no political discussions). Rather, I'll just say that, whatever the cause, the boy scout motto is at play here: Be prepared.