Thats a big imagination considering bilge pumps are in the bottom of the ship, below the armor.
Fix the damn puffy ack which has now ruined the fun of having an enemy CV near your base, and/or the ability of one suicide 190 to take the use of bombs away from a base. Then we'll talk about making CVs realistically proof against strafing...
If loadsa MkI Hurricanes armed only with .303s continually strafed a hanger (or any destroyable object) - would it eventuall be destroyed?