Bro, if bitcoin gonna be centralized,
there is no point of mining bitcoin. it is processed centralized,
so it doesnt need miner. the miner will lost its functions.
but i think thats not gonna be happen.
I agree that if bitcoin is concentrated, then the bitcoin does not exist anymore, and maybe that's when bitcoin died. No one will have confidence in it, bitcoin will be monopolized, such a cryptocurrency is only a personal or team's personal product.