Let's get this straight. Ninjas are masters of stealth and have been used historically as spies, assassins, and for sabotage. They blended in by dressing as farmers or monks or in dark clothing in the cover of night. They always avoided confrontation whenever possible and their fighting style was developed to ensure quick escapes from situations.
Naruto wears fucking ORANGE! It's the loudest goddamn color you can choose. How are you going to hide your presence in trees wearing bright fucking orange? Hell, I've yet to see him once utilize stealth for a quick kill. Hell, there's hardly ever a moment, even with the ANBU, where ninjas make a quick and clean kill. It's always some drawn out battle that takes FOREVER! And hell, they're never stealthy. They always scream out before they attack with a "Chan-naro!" or "Rasengan!" I mean, what kind of ninja telegraphs their attack to their opponent?
Weapons? The shuriken and kunai, two very fundamental ninja weapons are rendered completely useless. Fuck, I don't even know why they still use them. Whenever they throw them, the enemy just dodges or deflects. Shuriken and kunai are utterly useless unless they have a paper bomb attached to them. Even then, most enemies just escape. So the only thing the ninjas have to fall back on are their kekai genkai's and their elemental jutsus. But what the fuck, is this Harry fucking Potter? Since when do ninjas summon water, lighting, and animals to attack? These aren't ninja's! They're highly acrobatic wizards!
What pisses me off the most is in the series they always emphasize team work and that without a good team, even the best ninja is rendered useless. Well, guess what happens? Naruto pulls a Goku and becomes a one man army.
Eh, whatever. I'm still watching the series. Still confused as why they keep referring themselves as Ninja.