I assumed Netherlands was due to the sea level, but it shows that the "uninhabitable" definition they're using is nonsense. Because the Netherlands is very much inhabited, and inhabitable, it just requires occasionally spending $35 per person on a sea wall.
By that definition, most of the world is unlivable because you'll die (within hours!) if you sit naked outside at night in winter. And clothing and an insulated, heated house costs a lot more than $35 every few decades.
Likewise, desalination will become cheaper and cheaper. That's not "future maybe technology" like fusion or carbon capture, that's something that's already in use today, at a cost that will become feasible as the cost goes down and India develops more.
By that definition, most of the world is unlivable because you'll die (within hours!) if you sit naked outside at night in winter. And clothing and an insulated, heated house costs a lot more than $35 every few decades.
Likewise, desalination will become cheaper and cheaper. That's not "future maybe technology" like fusion or carbon capture, that's something that's already in use today, at a cost that will become feasible as the cost goes down and India develops more.