If I am feeling particularly generous I tend to agree with Samuel Johnson that "Patriotism is the last refuge of the scoundrel."

The rest of the time I am more aligned with Ambrose Bierce's version from The Devil's Dictionary.

“Patriotism, n. Combustible rubbish ready to the torch of any one ambitious to illuminate his name. In Dr. Johnson's famous dictionary patriotism is defined as the last resort of a scoundrel. With all due respect to an enlightened but inferior lexicographer I beg to submit it is the first.”