I was having a similar conversation elsewhere today. They were saying that, among other solutions to our national problems, that we need to expel Jews from government, as though that were even possible.
I pointed out that this has already been tried, it just wasnt obvious. The entire nation, the US, was once run by WASPs, white Christian men. And the outcome was that they sold out. Repeatedly. Over and over, even when it was no benefit to them just to be trendy. And they are still doing it. So before you even ask how that would change, I would ask why would it change.
You see pretty much the same thing with blacks. Blacks have advanced to become multimillionaires and professionals. Yet the black population, by and large, remains entrenched in poverty. There are other causes of course, but the point is that racial identity seems to flee peoples minds the moment they have a lot of money and can simply geographically isolate themselves from whoever thay would prefer to avoid.
So I dont think theres ever going to be a bottom-up racial recalibration on any of these continents. Its just going to be a slow melt down into cultural chaos and eventual reversion to whatever that produces.
One thing is clear: white kids in the future are going to face brutality as they become fewer and fewer. One can argue whether or not its somehow deserved over hundreds of years, if you feel justice is measured across generations instead of the actual individuals who will be brutalized. But it is certain, because every other ethnic group has demonstrated incredible brutality among each other as poor civilians rather than military members, which means it will be in the streets. And it seems rather obvious that has already begun...