Why Switzerland is weighing a 10M population limit
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But import problematic immigrants that are a tax + criminal burden and you make everything worse.
Good luck telling Swiss pharma or any other of their specialized industries to live without immigrants, they can close tomorrow. Immigrants are an insane boost to Swiss economy.
Also, I lived and been in Switzerland few times after, there's virtually no problematic immigrants. I've never ever felt the slightest danger, even walking at night with nobody but the kind of immigrants you don't like, you just don't.
Even though foreigners are overrepresented compared to locals (as in any other country in the world with immigrants they are the poorest and thus more inclined) the absolute numbers are very very low.
So no, higher or lower number of immigrants don't have linear correlations. Switzerland has an insane number of expats and immigrants as % of the population, insanely higher than the US or other countries like Poland or Italy, yet their crime numbers are fractional.
Of course land and real estate is limited, they can't keep growing at these numbers.
But stating that it's failed till now, is just a statement of "I've never lived in Switzerland and I have no clue what I'm talking about".
36% of the workforce is foreign born.
In Zurich, Geneve, Lausanne, 44%+ of the residents are foreigners, and more than half the workforce is foreigners. And that's even ignoring how many people work there but reside in neighbouring countries (France border is close to Geneve and Lausanne is close and even has a boat between the two sides mostly carrying workers).
If you think that a Swiss national (which has several advantages from a hiring perspective) is going to be cleaning your toilet, no matter the money, without having higher paying options you're absolutely out of your mind.
Albeit it's density is lower than comparable Belgium, Switzerland is crossed by the alps so the real available land is much smaller, virtually all of the residents live in 30% of the space.
In any case, that's the beauty of Switzerland: Swiss citizens can decide for themselves. I've seen many referendums in Switzerland and I've rarely seen Swiss citizens vote against their interest. Proposals have often an initial support, which fades as people discuss it and investigate it more.
Populism has really low grip there, politicians riding emotions have little legislative power.
Low paying jobs are predominantly staffed by foreigners. Swiss youth has a huge array of opportunities even without education, let alone many interesting tricks to not work a lot and still make money.
As someone not very familiar with Switzerland I'm curious what you mean by this, as I assume from your wording you don't simply mean generous benefits available to unemployed and low wage people?
So many swiss play the "get hired and try to get fired asap to go on a two years sabbatical".
Another country which has a similar strict immigration regime - Singapore. And for a direct opposite, there's the Gulf countries, which let everyone and their dog in, so that they can be part of the slaving class for the locals.