* I admit that there have been individuals in both the civilian government and in Starfleet, that have put their own selfish needs before those of others,
That's what the Federation says. But imagine you're an alien looking at the Federation from the outside -- why would you believe that? Doesn't it look like the Federation is engaged in all sorts of underhanded activities, and if the get caught they put the blame on some admiral for acting on his own.
And for that matter, were the events in Insurrection the result of rogue elements? I thought the Admiral had approval from the Federation Council. Was Picard a rogue when he conquered Tezwa? And what about all of Section 31's shenanigans?
but no political government in the galaxy that wants to peacefully explore the galaxy and interact with others in the same manner, has anything to worry about regarding the Federation.
So the Federation says. Why should the Breen or Gorn believe that?
Ever since its inception, the Federation has been the one galactic power that has protected and secured the galaxy from governments like the Romulans and the Dominion, who have historically sought only conqest and expansion(the only Romulans that have seen the error of their government and military's way, is the IRS).
Are the Romulans actually expansionist? Sure, they have a long-standing conflict with the Klingons, but can you blame them -- I mean, the Federation and Klingons are allies and they still fight. The Romulans supported one faction in the Klingon Civil War, but is that so wrong -- the other side was led by a Chancellor installed by the Federation, and if not for the Prime Directive, Starfleet would've aided Gowron directly.
The Romulans did try to conquer their ancestral homeworld, but only after a high ranking Vulcan infiltrated Romulan society and tried to subvert the government. Other than that, their relations with the Federation have been antagonistic but not expansionist.
Who else have the Romulans fought since they ended their period of isolation (very expansionistic policy there).
And speaking of the Tomed Incident, doesn't that rather undermine the Federation's claim to nobility in combating this alleged Romulan expansionism?
If the Tholians wanted peace and cared about others like most Federation citizens do, they wouldn't have joined a group with less-than-reputable governments like the Romulan Star Empire, and the Gorn should have joined the Federation that saved their people from near extinction. Either way you put it, the Federation is the way to go.
You're assuming that they view the Federation the same way you do.