Moreover, if we end up with complete deglaciation of the ice sheets, the CA central coast would turn into a big peninsula all the way down to Paso Robles as the central valley becomes a huge bay.
By 2070, 56 million people in Kolkata, Mumbai, Dhaka, Guangzhou and Ho Chi Minh City will be exposed to flooding. 10 million people will be exposed in Miami, New York, New Orleans and Virginia Beach. [0][1]
[0]: http://www.oecd.org/env/cc/39721444.pdf
[1]: http://www.aia.org/aiaucmp/groups/aia/documents/pdf/aias0767...
“It is estimated that a hypothetical 1 m rise in relative sea level projected for the Gulf Coast region between Alabama and Houston over the next 50-100 years would permanently flood a third of the region’s roads as well as putting more than 70% of the region’s ports at risk,” the IPCC said.
http://www.rtcc.org/2014/03/26/long-term-sea-level-rise-will...
Florida in particular also has a little issue you may have heard of with sinkholes. The geology is generally limestone, and this can be undercut by water and other effects. There's also the matter of saltwater intrusion on freshwater supplies and flora, as well as other secondary effects of seawater rise.
So I wouldn't be too sanguine.