Perhaps you are not as confident that US is a "Great" as you say if it must be compared to mine to then justify why it is so marvellous.
It usually goes something like this:
me: What foreign policy?
Libbo: our foreign, policy.
me: which one?
Libbo: the foreign one.
me: ok, but what about the foreign policy is bad?
Libbo: it was Reagan's fault.
me: what'd he do?
"He who does not think himself worth saving from poverty and ignorance by his own efforts, will hardly be thought worth the efforts of anybody else." -- Frederick Douglass, Self-Made Men (1872)