Then things will simply have to change out of necessity, it's really quite simple. You don't seriously think people in 'low-IQ countries' aren't going to develop at astounding rates once the 'high-IQ countries' are gone right? Don't forget that modern western civilization came from the dark ages and modern Islamic civilisation came from the Islamic golden age. These things are cyclical, they come and go, there's really no reason to be panicking.
The top comment here is a person who has had the unfortunate experience of realizing that their cultural and genetic family are at high risk of being trimmed away from the tree of life. That's a pretty serious existential dread to swallow. Have some sympathy for them.
I mean, if all of humanity were going extinct could we say something like "well, at least there's a good chance that squids will evolve sentience someday so we will live on through squidkind no reason to panic" and make you feel better about it? And if that worked, maybe we ought not to even worry about the entire solar system being wiped out since there are plenty of other solar systems (no need to be such a xenophobic solist). And if that made you feel better maybe we ought to not mind the whole galaxy being wiped out because ... and etc... etc... c:
When all of humanity goes extinct (which is inevitable), I will be more concerned about the method of extinction than the extinction itself. Even the collapse of this reality, while grand is minor in the face of what I believe comes after. I prefer not to make too big a big deal out of the inevitable, at least not until I get there.
