I’d like to compare the standard of living for the median person in your hypothetical situation where sea level rises.
In 100 years our technology would be so advanced that people would be much much more prosperous. Ok sure a few cities drown but people move and adapt.
I still hold ground on the fact that people will be more prosperous in 100 years with sea level rising - in the sense that a person would prefer to live then rather than now
Yikes, might need to send you back to the books to see what happens when a large number of people are displaced all at once.
Look at America/Trump right now with economic immigrants alone. This caused half the country to go "Yea, locking up people in cages and letting losers with guns shoot whoever they want while supporting an authoritarian regime is perfectly ok". Just what do you think it's going to look like when the numbers are 10x that from inside the country alone (a huge amount of the population lives close to the ocean).
Advanced technology has nothing to do with wealth equality and with the costs of making said technology it may be even further reverse correlated in the future.
It's not just rising sea levels. Natural disasters will continue to increase both in terms of frequency and severity. Less steady rainfall, more aggresive cycles of drought that kill your crops and floods that destroy homes and businesses.
Some places are going to lose their sources of drinking water and others will face deadly heat. Either way millions of people are going to get displaced every year.