Proportion and rates of ice loss are difficult for many humans to get their heads round.  Were the rate of warming which has existed for the last hundred years been the same for the last 10,000 years, the ice would not have just retreated, the whole of the planet would be nigh on uninhabitable!  The disconnect between the two periods of warming is so great, and in your head, you have equated them.  That is a logical fallacy!