It’s worth pointing out that the Titanic is literally disintegrating. Bacteria is eating away the steel. They even named it after the ship: halomonas titanicae.
The wreck will soon be gone or severely dimished to the point it’s unrecognizable. Certain things will definitely remain, but the structure will not.
And frankly, good. The ocean floor has no obligation to maintain our trash in pristine order for us to gawk at. Let the wreck vanish into history.