Yup - that resonates with me.
Things could be bad, life expectancy could drop, total population could drop (is that a bad thing) and the standard of living could drop (well for western societies). These are not good, but its not "end of world".
I still think the biggest issue will be migration. As some countries struggle people will want to move to better places. We have already seen this for many years, often caused by war, but this could massively multiply if places like Bangladesh become unable to support their population.
The USA... well if sea rise wipes out Florida and gulf states there is plenty of room to move people. It would be expensive but doable. Many lives might be lost on the way. But its not like most people will be wiped out.
LA runs out of water... its just $$$s to build desalination.
Again for western countries its mostly about how much money you need to throw to overcome the issues. The problem will be if it combines with war or political instability, money to spend on these issues will be harder to justify. Basically the rich and powerful clinging on and leaving everyone else to suffer.
Heck maybe even most westerners will need to accept a drop in living standard to support more of the worlds population living at the same level.
End of the world - no.
Big change in how we live - yes.