My underinformed take.

The American economy and larger global investment market/rigging is ...speculative and a sham. And it's no longer the 80's/90s, the US is falling behind in most emerging fields of science, standards of living, political freedom etc.

Worse, we all take part in it with employment, 401k etc.

So....who better to distract everyone from that stark reality, than a reality TV criminal! He's perfectly equipped to stir up tension over....erm...greenland....to distract from the obvious (multiple) crashes coming.