I think I can explain that one. Consider a pig farm, and one of them tends to squeal whenever it doesn't get attention. You might not take the pig seriously, but you get that it might "start some shit".

Now, imagine someone having strapped a collar on it, with buttons that have very real life consequences. Now, every time the pig starts squealing and squirming, everyone gets pretty concerned. Few want to take the pig itself seriously. But, unfortunately, it is what it is.

TACO is a dangerous narrative, Trump is a coward because he is incapable of swallowing his pride and backing down no matter what.

Understand this chaotic back and forth as a series of pump and dumps, Trump cannot keep himself from doing it because he is a coward, but that makes this impulsive brinkmanship all the more dangerous because at NO POINT does Trump have control over his impulses.