... they almost invariably take their a advice from fellow Americans many of whom have taken their advice from other Americans
... They all go to the same places. ...They all share the same mediocre "secrets" but always from other Americans ... They almost always ignore advice from Europeans... all the Americans all say the same thing ... the Americans seem to idolise and worship and is almost always invariably clueless... Americans with the smug look on their faces that they now know and share a secret that no one else knows. It is predictably pathetic.
Wow, we in the UK have a phrase for this: "cemented mind" ... you are generalising outrageously--possibly because of a few encounters with a few low-life yanks? There are low-life types in every country. Raise your own game maybe? Then perhaps you won't be so bitter.