American Dream right there, being an unimaginably brash asshole to subservient employees, and that makes you famous.

In his (our?) defense, isn't he usually fairly kind (if still foul-mouthed) to the staff, and relentlessly harsh only on the owners?

And we (Americans) eat it right up because anyone with a British accent automatically exudes authority and instills a bit of brow-scraping from the frothing masses. Also, a large portion of American has never traveled to other countries, nor experienced anything but domestic accolades and propaganda for their whole lives.

So yeah, the irony.

I've only watched a few episodes, but it seems like he's kind to the wait staff and cooks generally, and reserves most of his venom for owners and managers