[quickthrowman]

All of your sources are about Arctic sea ice melting completely. If all of the floating ice shelves and sea ice melted (all of it on Earth), it would raise the level of the ocean by 1.5-2 inches [0]

For the sea level to rise 230’, all of the Antarctic ice would need to melt which will take hundreds or likely thousands of years. [1]

So no, there will not be 230’ of sea level rise in the next 75 years. That being said, the melt in Antarctica could raise sea levels by several feet by the end of the century, which would absolutely impact every coastal city on earth.

[0] https://nsidc.org/news-analyses/news-stories/melting-floatin...

[1] https://www.weforum.org/agenda/2023/03/antarctic-ice-sheet-i...