I don't think that we would see a 10’ rise if all the ice on earth melted at once.
If the good professor knew any math, he would understand the sheer volume of the earth's surface, if the increase in water was evenly distributed.
A BOtE calculation shows 50,000 cubic miles of volume added to a sphere 7,958 miles in diameter, if the sphere increases in size by 0.002%.
Not including the volume of the original ice.
Strangely enough we know from satellite data that the actual amount of land mass in the world has been increasing not decreasing especially in coastal areas during the modern era. But from compilations of historical data sea levels do appear to have risen an inconsequential amount at a very slow but fairly constant rate since the end of the little ice age. The rate is so slow that the year to year increases are within the margin of error and difficult to differentiate from land masses rising and falling and the effect of erosion depositing more sediment in coastal areas. There is no credible evidence that the rate of rise has increased since in the 30 years or so since this nonsense has taken hold.
The predictions of an increased rate of Sea Level rise over the past 3 decades seem comical when you visit coastal landmarks and find that basically nothing has changed in an easily observable way in hundreds of years.