They kind of got all the right to. The great American dream, global dominance, equal opportunity for all professions, hard work actually pays off, government doesn't fuck you in the ass everyday, independent judiciary and bill of rights. People would kill others to get a chance to live in the USA.
Until they figure out that the American Dream is long dead.

>Why do Americans have such patriotism while at the same time they loathe themselves
Based on what I've seen around here, the education system and media has intensified their white guilt and made them feel ashamed of their history - slavery and killing Injuns.

What Criticisms do you mean btw? It's possible to debunk everything or point them at Jews/Masons.