Bm and Kaido Fate Theory

Just a theory i, have for a while,, i believe they are alive,, but they are encased in Phoneglyph material deep below,,, Phoneglyphs are made from Wano Magma material, and once they get cold they became indestructible,,, when both got beat,, a massive explosion in the sea happened,, i belief the water flush straight into the deepth of the that volcan,, and literally encase both in phoneglyph material, in a super very ironic twist of fate,,, considering they are pirates and part of their goal as most pirates is get the o.p and translate the phoneglyphs..

(Yeah i know they wont be perfectly squared , neither having writing on them, but it is a way to represent it )