I am in no mood to type things I have already said, so I am just copy pasting relevant posts:
Post 1: I have been saying this since ages - the kages need to be put in the graves, their systems abolished for the future to have a fighting chance. It's only now that the manga has head down this path. Hence, I fully support Sasuke's stance on this. Naruto cannot guarantee the future, no one can. If the system is over-hauled, with these relics of the past gone, then there can be a modicum of credibility to the notion of peace.
These dictators who didn't lose any opportunity to take part in mass slaughters, left human shambles, orphans, destruction in their wake through three great ninja wars, breached treaties, even used terrorism against their own people just so the countries wouldn't dry their funds are like the people you listed? You must be joking.
Also, they are not world leaders, nor are the equivalent to one. The Kage title is given to the military dictator of only 5 of the strongest villages. The rest of the world still exists beyond this limited compass. The countries leaders are the actual rulers of as this present shinobi alliance couldn't even be formed without their approval.
Post 2: Considering the fact that they follow their orders and take part in their grand, lofty, and downright humane escapades ... I have no idea what your point is here. How would they not know their own military technocrats' political leanings, as Jounin and Chunin class missions are directly authorized by the Hokage or any kage for that matter? This is a self-serving point, not backed by the manga at all.
What? That's preposterous. The leader carried out random incursions through ninjas and I doubt he went to Konoha himself to poke out Hinata's eye-balls. Not to mention that we have Ao's example, who is a supposed upstanding citizen of Hidden Mist, despite the Byakugan he stole. You think 98% of the village, which is mostly populated by military based clans, have no clue how he procured it, or how Ae was carrying out cross-border terrorism without his Jounins being privy to this information? You must be joking.
Comparing Obama - a democratically elected leader - to a militia faction with its own dictatorial set-up, along with an implication that any Kage is somehow a world leader isn't helping your case. No, it doesn't apply to NV. Hidden Rain was crippled and economically destabilized by the three great wars. They were content as citizens with Pein leading their village and that their village was finally flourishing. Yet Konha meddled again, destroying their leadership that had finally stabilized the village. Let's not glorify Jiriaya or Konoha's incursions just because we feel like it. Do you think Hidden Rain would not applaud Sasuke for his actions? These villages don't make the world - just a measly little portion of it.
Also, you must be delusional, no offense, if you believe the entire world sees America in a nice, bright light. I have no clue where you have been travelling, but where I live, people want to eradicate America off the face of the planet for the misery it has caused them. Can't say I blame them.