Funny how even something disgusting can sound better with a foreign name. It means something like "fatty liver" doesn't it? It's more of an autopsy report than a menu item.
No it's not... Plus it is 'possible' to produce foie gras without force feeding and unethical animal welfare: http://www.theguardian.com/lifeandstyle/2015/jan/14/can-foie-gras-ever-be-ethical (and yes, I know it's the exception rather than the rule - I'm just playing devil's advocate)
What a cock he is. What he said sums up the pathetic "professional northerner" attitude that should have died when the Seventies ended. Boasting about your ignorance doesn't make you look principled or a "man of the people" - it makes people think you're stupid and don't read books.