This is The Simpsons doing political satire, and the extent to which some people have seemingly completely missed the points a is astounding and also somewhat ironic given the content of some of the reviews for this episode.
The message of this episode makes a lot more sense if you give it some context by considering the time when it was first aired and what was going on during that period (the early 00's).
People frothing with rage insisting this episode is "pro-american" and "disgraceful" really need to chill and re-watch the episode, perhaps trying to apply some perspective, patience and reason upon their second watching.
Overall 7/10. It's an OK episode, but I like it when writers try to do things like this, even if they could have pulled it off slightly better.