^Wow, that is incredibly ignorant. We know very little of 24th Century Earth, and even when it comes to Starfleet. I deeply doubt that the actions Starfleet took in regards to the Maquis was the only questionable thing on their record. There are probably many more valid reasons for the civilians to dislike starfleet even with the Romulans, the Dominion and all.
Robert's resentment toward his brother has nothing to do with Starfleet. It was like that between them their entire lives. Please don't assume the civilians on Earth are not intellectually capable. That is just absurd. Would you be intellectually capable if you lived in the 24th Century, better than billions of civilians living out their "fluffy utopian life" on Earth?
Agreed. I also take issue with the notion that Earth's media and educational system has some sort of anti-Starfleet bias. The few times that we see the media, they're pretty supportive or helpful of Starfleet (ie that rather large amount of fanfare for the Enterprise-B's maiden cruise, or Jake Sisko's journalistic role up to and during the war). As well, we've also seen non Starfleet scientists working well with Starfleet despite working for a separate entity.
True to life, we do see civilians who are against Starfleet, but we also see a good amount of civilians who are very much for it. As someone earlier pointed out, you'll find a variety of opinions out there in the Trekverse.
Oh, and for me, while I'm against a number of military practices and the decisions that various Commanders-in-Chief have made, I'm not against the military itself and I'd probably be in Starfleet. For the US, in addition to protecting the nation, people who have come from a military educational background greatly enhanced our scientific, technological, artistic, and cultural knowledge, from particle physics and diplomacy strategies to Gore Vidal and Bill Cosby.