Uh, no, you're only describing Seed Destiny there (which I don't even consider canon because all of the massive character derailment, not to mention the director's distrubing views on morality (people who are pro-removal of free will = good guys in his book?!) and his wife destroying the story because of her grudges against Cagalli and Shinn's VAs)). In Seed, Kira made tons of mistakes (failed to save countless people, let Flay manipulate him for quite a while, and lost to Athrun in their final fight halfway through), definitely had internal conflict, and the cast was emotional because they were brand-new recruits with no prior training (now, if you want to criticize Athrun, that's another thing). Of course, Amuro acted even more emotional and idiotic than Kira ever did ("I'm leaving, and to act like even more of a jerk, I'm stealing the Gundam as well! Yeah, that shouldn't get me court-marshalled for life!"), but the fanbase never whines about that.
I don't recall high school drama in 00 (or Seed, but I guess if one defines teenagers actually having emotions as high school drama, than it counts), save Saji and Louise, but they were clearly meant to show civilians' view on the events going on.
Honestly, if I have any major beef with a Gundam series, it's Wing. It wasn't bad, but the lack of deaths was annoying, and most of the cast was rather unrelatable until way into the series. The story was definitely strong though, and Zechs and Treize are among my favorite Gundam antagonists. Also, I never cared for the Relena hate, since she's one of the few characters in the beginning I have any reason to care about.
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