Here’s some cocktail napkin math.
“As large as Florida...” might clock in at about 1/ 1000th of the land mass on earth...probably less..
Ocean mass beats land mass 70/30 so a Florida sized glacier falling into the ocean would amount to little more than a blip. This assumes the Thwaites glacier currently sits on land rather than a portion floating in water currently.
The thickness and density seems another issue since warmth from the earths core appears to be melting ice from below. How much remains ?
Here’s some cocktail napkin math.
++++++++++++++++++++
My version of napkin math to illustrate stupidity:
Surface area of Earth = 197,000,000 square miles
Surface area of Florida = 65,800 square miles
Earth has close to 3000 X surface area of Florida.
If the entire earth is to be covered in a blanket of 16 feet of water, then the depth of the chunk of ice (area of Florida) needs to be 3000 x 16’ = 48,000 feet = 9+ miles thick.
Complete and utter bull crap. Unless of course you believe men can get pregnant.