Then tell me what soul reaper is stronger than Yamamoto go ahead I'll wait...that's right there had not been a soul reaper stronger than him in over a thousand years.
That's not the point you fcuking moron.
What does the fact that Yamamoto being the strongest Shinigami in 2000 years have anything to do with Squad Zero not being stronger than the Gotei 13?
You're not dumb because you think Yamamoto is the strongest Shinigami in over a millennium. You're fcuking dumb because you don't know how to tie 1 point to another.
Yamamoto's strength has nothing to do with this. Squad Zero could
still be stronger than the Gotei 13
overall considering it's comprised of Captains who've been promoted. You don't get promoted if you're not exceptional. This doesn't take away from the possibility that there could be members who are damn close to Yamamoto's power either. A group of Shinigami who are close to Yamamoto's power would still fare better than Yamamoto alone - there is strength in numbers.
In the last chapter we were also shown that the original Gotei 13 were made up of "blood thirsty killers". It's entirely within the realm of possibility that a few of these Shinigami could have entered the Royal Guard. This could easily have been meant to foreshadow some of their appearances.
If you don't understand this then I'm done arguing with you because it's only making me dumber. I can feel it.