Says the one who can't even provide basic evidence to his own claims?
First of all we are talking about a manga where the situation can change within a few weeks so opinions expressed 5, 6 or 7 years ago don't carry much weight given that Oda has just introduced gods and could decide to create even more outrageous things in the coming months.
Secondly you don't need to be a genius to realize that since we're talking about a manga, the remaining characters will end up being far more powerful than Kaido and Big Mom, especially considering we are still hundreds of chapters away from the finale.
Finally, as i have already told you countless times, to have any kind of discussion you need to establish a starting point.
In your mind Zoro is already superior to characters like the Admirals whereas the reality is completely different but you are too stubborn to accept it.
You did the same thing with Gaban's power level as well as with your refusal to accept that Sanji will unlock coc.