The recent manga's were all shit, it's becoming a "fairy tail" bullshit kind of story "We'll win everything with the power of friendship"
agreed but thats how all mangas nowadays are like....
Naruto for the most part has always been about him looking for friends or "nakamas" born alone but he found Iruka, Team 7, Ramen Guy, his class of genin, Jiraiya, Gaara, Killer Bee, Kurama etc etc and then he gained the support of his village and now the support of the whole ninja world... Its him and all his friends (the shinobi alliance) vs the 2 worse villians up to date and a legendary beast...
plus the whole war has been basically Tobi vs the whole Ninja World so why not have a battle of Tobi (and Madara) vs the whole Ninja World..?
its only logical...
but going back to my first point... Mangas back in the day like Inuyasha, Full Metal Alchemist, Yu Yu Hakusho, and Dragonball Z were more focused on the main character but nowadays there is a strong theme of nakamas, fighting with your friends and fighting for your friends like Naruto (who has been fighting to gain friendship and companionship in part 1 and fighting for his friend Sasuke in all of part 2) One Piece who all their victories are always due to THE WHOLE TEAM pulling their own individual weight and Fairy Tail which has the constant theme of fighting to save or protect a friend or friends...
thats just how it is... didnt mention Bleach.. not really a fan.. but from what i know even Ichigo Kurasaki is always protecting his family and friends....