Naruto's bad because of its stupidity, not because its characters are stupid.
uhhhhhhhhhhh
I say a lot of the characters are stupid I mean you can even say the series is stupid because the characters are stupid. And you can even say the characters are stupid because the series is stupid.
It just seems all so stupid when you look at characters like Gaara's dad and his great parenting skills.
And Sasuke and his cast members like that girl who set females back 10000000 years and was fine with Sasuke trying to kill her because he is so hot. 
And the Uchiha family genes makes them stupid evil and that makes them stupid.
Then you have Obito who is stupid not only because of the stupid evil genes he has but because his whole story and backstory are stupid.
The 2nd Hokage Tobirama is stupid because he made the case for an Uchiha genocide and I have to agree with that seeing as they are all stupid evil thanks to their stupid evil genes. I should not have to agree with a genocide of any kind ever even in a fiction world so that's stupid.
The whole of Akatsuki was stupid because they were all pawns and fodder of the true final villain of the series, a sleeve and his moon rabbit mama. Who were also stupid.
Kiba is stupid because he thinks he is good enough to be Naruto's rival.
The whole Ninja world is stupid in that they didn't give a sh!t about half of all the ninja forces of the world being killed in the first day of battle against trees and zombies.
The Anbu are stupid because why do ninjas need a special assassination and tactical squad if they are already ninjas?
And
Ah f**k it you get it already.