After reading Open Borders by Bryan Cahlan, I’m convinced that if there is a burden on the host country it’s temporary. Long term, I think the host country has much more to gain than to lose.
That said, the most obvious parallel here is the indians expelled from Uganda [1], who were essentially the merchant class of that country. And I believe have done very well in England.
[1] https://en.wikipedia.org/wiki/Expulsion_of_Asians_from_Ugand
It may be true that all kinds of immigration greatly benefit host countries in the long term, but this is more debatable than that allowing wealthy, liberal, educated immigrants is a net benefit to host countries.
We can argue about the long-term benefits of open borders. I don't believe eggsnbacon1 was stating a position there--more like pointing out that there are some short-term costs that generate popular pushback. But ushering in the cream of the crop is obviously beneficial; it's a no-brainer.
Most studies does not account for what people dislike in immigration : fracturing social contract and communities shattering. Frictions in the salad bowl are poorly translated to economic figures but folks live it everyday.
So look carefully at what each study says and its perimeter.
One should curb down its sureness of that matter.
Also, if it's population you're concerned about, shouldn't you also worry about people having babies?
Clearly we have different ideas about reasonableness.
> if it's population you're concerned about, shouldn't you also worry about people having babies?
I do, especially in those parts of the world in which fertility is particularly high yet ability to actually look after those children is particularly low
Trying to apply this same logic to a country that's stagnant economically or that already has a fast growing population would be silly.
It was the OP who came up with the example of France to say that is not true.
> It’s the reverse, the burden is definitive and ever growing.
So there are two possibilities
* The French example is one of the very few exceptions -> This means the point OP is trying to make is kind of useless. Exceptions are present in almost all the theories.
* French example is what will happen in all most all the countries -> In that case OP's point becomes just ironic.