If it was global, there'd be a pretty big, brown purge since most non-Asian, non-White races are sub-93 iq on average. The population sink would create some pretty huge problems for the browns in these nations and opportunistic countries would probably snatch up most of their land.
For nations that would sustain more numbers like Europe and East-Asia, I'd guess things would actually remain pretty similar, however crime rates would drop a decent bit and businesses that rely on the low-iq would collapse. Fast food would stay around since they can still employ teenagers, but delivery food, Uber and hotels would all be in a huge pinch since they have no immigrants/ retards to employ now. Scam businesses, like those rent-to-own places would also get destroyed.
I don't think any big political change would come from this intelligence shift, if anything, political change would actually become far more difficult. Political change comes from what they call "great men", the types who can really rile people up. It's a lot easier to rile up the low IQ, you can more easily convince them to die for your cause since they have a bad understanding of the future and tend to just live in the present. A higher IQ population would be a lot more cowardly since they actually understand how dangerous it is to rebel.
Also, Africa would become a literal wasteland lmao.
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