Except Madara and Hashirama aren't unstoppable, they have weaknesses. Naruto in both SM and KM being unstoppable means that no one can defeat him. Naruto is certainly strong, but I wouldn't want Naruto to be so strong that he's unstoppable and unable to be defeated by anyone in the series.
Another point I'd like to raise is that just because everyone agrees with you doesn't make your opinion right. An opinion is neither right nor wrong, but a good opinion is supported by good reasons and arguments.
I want Naruto to be a strong Hokage worthy of protecting Konoha and its people, and being the strongest in the village. But what I would hate is that he would be even stronger than the Hokages that come after him, because then the Hokage line would only get weaker instead of stronger. One thing that did attract me to Naruto is a > b > c logic doesn't work in Naruto like it does in DBZ, therefore you can have a Hokage that's stronger than the previous Hokage, but that doesn't mean that the new Hokage (ex Hiruzen) can defeat the previous Hokage's (ex Hashirama) opponent (ex Madara).
So, instead of bashing a person for their opinion and getting all worked up over it, give good reasons why you think his opinion is flawed, or his reasoning is flawed. Otherwise, I don't recommend posting.