The problem with the whole sea level rise due to ice melt is the fact that there is nowhere near as much ice as there was during the ice age.
At the end of the last ice age the sea level did rise by a couple of hundred feet but there isn't a miles think ice cheet covering millions of sqaure miles of land today.
Actually, Antarctica is 4.5 million square miles, with an average elevation of 8,000 feet.
98% of it is ice.