Sigh, you're calling me out for taking feats from Main characters of The Uchiha clan for comparrision of the whole clan.... Yet, you are the one who is taking feats from literally the main clan members of the clan, and stating it as the abilities of the whole clan.
2. Um, maybe because he didn't of it earlier? Or maybe because he didn't want to? Remember, Madara loves his clan more than the rest, it was more of a desperate measure on the condition and situation he was in.
And as I've stated, one just needs to manipulate an Uchiha to a very heartbreaking point, it's not difficult, considering they have intense emotions and all. Madara did it easily, Obito did the same, Itachi got his suddenly, Shisui and Fukago got theirs without much emotion than the rest. So, it's possible.
The offspring that was passed down a tailed beast was the reincarnation of Ashura, with the powerful body. No other Uzumaki showed that trait.
3. I was merely talking about it on the long run, Information can be stolen, and it can be learned, Sarutobi learned all the techniques in Konoha, including hiden techniques for what I know off.
And secrets can be told, with just a second on genjutsu, an Uchiha can force an Uzumaki to spill all their clan secrets.
4. Wow, you just made fun of yourself there. I was actually being kind there, Itachi Uchiha has chakra lower than Average, it's even stated in the wikia, plus even with h8s near to death state, his chakra was even lower, yet we know how many techniques he used.
Though, judging by your reaction, it seemed you might have read Itachi as Obito or Madara or Sasuke, who actually have high chakra in comparrision to Itachi.
5. You should start to read more, The Uchiha clan are a clan known to having all of it's members as geniuses, something the Sarutobi clan also has, I think.
And Sharingan doesn't make anyone a genius, it's the user itself who has to be one, if you paid attention to the whole series, you'll notice people talking about a clan with remarkable talent and powerful chakra, or the clan Orochimaru was obsessed off, or a clan the whole village was afraid of, or a clan, with just having it's name or crest being enough proof to be talented. Or you probably heard this line around by Orochimaru, "Whatever someone do, the Uchiha just excels in all" Or something like that.
The Uzumaki have high chakra reserves and seal knowledge, The Uchiha have Sharingan and pure talent.
Though, you can use your logic against yourself, for the pratical things, like every Uzumaki member need of knowing Fuinjutsu, or even having talent on it.
6.I wouldn't actually mess with a clan who could trap anyone with the use of just some eye contact.
7. Apparently you forget why they were written off as Forbidden jutsu. Ofcourse, not everyone can use the same technique to the same extent, but this is not like a fire ball jutsu, with which the power of the chakra and user determines the power/damage of the jutsu. This is merely a reality warping jutsu, it makes the user rewrite his/her life in between a short period. That is the basis of the jutsu, with more chakra and mastering, the user can use it for an extended time and even beyond death. But rewriting reality is the purpose of it.
8. While we don't know much abot reaper seals, they were techniques used by only Kage level shinobis, plus the cost of the jutsu, is insanely the worst fate possible for the user too, the users of that jutsu only used it on a very serious situation, for the need of the future gen. It's not exactly the kind of jutsu you use it when you are cornered considering you'll die anyways and be trapped inside the reaper. So, it's a gutsy kind of jutsu, the circumstances are the only thing that brings the user to use it. In comparrision to Izanagi, there is not a serious condition like that, and so Izanagi was widely used by it's members to the point one had to make a jutsu to go against that. It wasn't like one member used it, and so someone just thought of making it, the whole clan kind of went crazy with it.
Plus, Izanagi is kind of the best jutsu againsy Death Reaper seal, considering the user can just rewrite his/her situation after being caught in it. While the Death Reaper dies in vain.
9. What do you mean by same as Orochimaru's? Did Orochimaru catch Manda in a quick Sharingan genjutsu.
And yes, Naruto's bond wasn't complete, though nothing suggested that it can't be done with a perfect Jinchuriki.
Plus, there is not much chance that anyone can befriend a tailed beast, Naruto and the rest, were unique for a reason.
10. No, having numbers is the best way of handling against an Uchiha, it's not exactly like it's a counter, it's more of a battle strategy when there is not much chance of escape or anything else.
Manda was just seconds close to his death, when he realized what actually happened. So, even in a two team counter, one has to stay one the front side of the Uchiha for it to work, and they will be caught in the genjutsu, and summons are easier to catch in genjutsu considering their size and all.
And no, The Sharingan genjutsu is not a common genjutsu, it can't just be broken through, it's a powerful genjutsu that makes it's victims fight on their side for even till the end of the battle.
But now that you kept on mentioning these powerful summons. I am curious, what are they? Did you just made it up on your own your own, that the Uzumaki clan are a clam with powerful summons, when we never saw any full blooded Ordinary Uzumaki with it?
Plus, at the end, here's a note, The Uchiha clan was the only clan that can go up against the Senju, and the Senju for them. There was no 'plus the Uzumaki', even with a clan the size of a village, the Uchiha clan and the Senju clan were the only ones considered the strongest. So, that would actually make up all my points, now why didn't I think of that earlier?
Anyways, these are just my own honest opinion.