625 persons per square mile sounds pretty nice. Where I live is about 3000 per square mile, and the county is about 750 per square mile. And, it's a pleasant Human-scale density.
This initiative isn't about maintaining a certain population density, it's about restricting immigration and separating Switzerland from the European Union.
A lot of people have reached a point where asylum and family reunification aren't high priorities anymore. Over the past 30 years, developed nations have helped 1.5 Billion people get out of extreme poverty. That's huge! But, now many would like to give those people the tools to build their own infrastructure, education systems, health care systems, economies, etc.
Interesting how different perspectives work. It’s less than 400 per square mile in my corner of the country. It’s less than 80 in my area and this feels right for how I want to live.
We’re probably more aligned than not. Within a 40 mile radius, there are a few small towns < 100k, but the rest is low density rural. Unfortunately at the edge there is high density, and skews the average.