Vixen
Penultimate Amazing
No. There were points of connectivity between the bow visor and the bow ramp. When the visor eventually tore itself free from the ship, it damaged the structural integrity of the ramp as it did so. There's zero mystery as to why the visor came off the ship while the ramp - though damaged and fatally compromised - stayed attached to the ship.
The sides of the bow ramp - which by now were not watertight, after the ramp's structural integrity was damaged when the bow visor tore off the ship - were (obviously) closer to the waterline than the top of the ramp. It's therefore zero mystery as to why the majority of the water forcing its way around the ramp and into the vehicle deck came in via the sides of the ramp rather than the top.
And?
Once again: no dice. Your (ignorant and ill-founded) attempt at an argument on this point can immediately be refuted by reference to the Herald of Free Enterprise disaster. That ferry also had a vehicle deck above the waterline. That ferry was sailing in relatively flat-calm seas at the time. And that ferry sank because its open bow doors allowed enough water into the ship to fatally compromise its buoyancy. By contrast, the Estonia - pitching up and down in the high swell and still sailing at speed - would have taken in water via its broken bow opening even more easily than HOFE did.
The Herald of Free Enterprise ended up like this. Stop making fabrications about it having sunk to the bottom of the sea like the Estonia.