I don't like this descriptions that may show the Fed as space murica... isn't it possible to show it in a diffrent way.
Yeah, why does it need to be "art imitating life"? Why can't it be a completely unique and original storyline?
Every other faction manages it.
Do they?
Every faction is a historical mulligan stew with some odd element thrown in whose impact is actually less than it looks like it should be. The Amarr are Space Feudalism, with the addition of a check/balance in the persons of the Speakers of Truth to make its long-term stability plausible. The Minmatar are tribal victims of a colonial power that have strong enough ties to one another through a shared history of suffering that the usual tribal bickering-leading-to-bad-things hasn't happened. The Caldari would be a fine blend of the most "greater good" -minded Japanese and Germans, if it weren't for that odd capitalist governing structure-- which, however, isn't really "corporate" in the way we think of it because the standard capitalist corporation has no duties but to its stockholders, which isn't the case among the Caldari. It's better described as quasi-feudal and meritocratic, comparable to imperial China if the Warring States period had reached detente instead of actually ending.
The Gallente Federation is basically France (remember, there's an ugly undercurrent of anti-immigrant sentiment, there, too) redone as a confederation (which doesn't actually work, but it's a nice idea) with the sort of problems you get as a democratic superpower (hence the American-style issues).
We don't have too many models for the troubles a democratic superpower gets into (though we've got plenty for the ones any democracy gets into-- "we the people" aren't necessarily the best judges of our own best interests, especially when we're scared and/or pissed off). The U.S. seems to be our main generator for those.
Now, if they wanted to carry their confederacy format to its historically-typical conclusion, that would be a different and very interesting set of problems. Sadly, it would mean no more Federation, because it would involve the whole thing going to bits....