I don’t think you understand. Like it would have to evolve into an entirely different class of life, it would no longer be “bacteria” thus “bacteria” can never become resistant to it because to become resistant means that it is no longer “bacteria”
what do you know what it would have to do? sure, bleach dissolves bacteria cell walls, so for a change to make bleach coming into contact with cell walls not dissolve them would make the cell walls not belong to a bacterium, but what if the bleach that you apply to a surface to kill bacteria is prevented from making contact with the cell wall of a bacterium through some unforeseeable adaptation of that bacterium? now it's resistant to bleach but still a bacteria, and now it's out-reproducing other bacteria.
what adaptation would cause that? no one could say, it's _unforeseeable_.
the actual situation of interest isn't bleach coming in contact with bacteria, it's humans trying to disinfect surfaces by applying bleach.
These are all human issues, the “archea-bacteria” wouldn’t care what we called it, but fun to think about.