there is a bulge at the equator due to the gravitational pull of the spinning of the earth.
There are continuous cycles in geological history, there was ice ages; and more water was captured in the ice that what is being supposed by global warming. The evidence is in the rock. At one time the continental shelf was once dry land for instance. At one time All of America was under water. Global areas once under water are now dry land. Perhaps slowly and sometimes catastrophic events. The waters were in transgression, or regressed.
Sun spots, volcanic actions, major eruptions, etc. Man has no effect on any of these occurrences. The Bible says God set the boundaries of the seas in a few places, Job, Psalms, .... this was after man was on earth.
So are you saying there ARE MANY CUBIC MILES worth of water in that bulge at the equator?
Such that if a pole shift occurred wherein the spin was significantly altered however briefly, that bulge could engulf coastal areas to quite a height as contended?
Then there’s Scriptures indicating that underneath the earth—in the plate? there’s a huge amount of water, too.