You should check Geneva then - they are building apartment buildings like crazy in past 5 years. Too much if you ask me - in very center, almost every small park or green spot is now 6 story concrete building. Only the biggest protected parks are untouched. City is visibly and permanently degrading into concrete field. Weirdly schizophrenic move - they try to keep pushing bike lanes everywhere, even where not safe to share the road, yet they also remove greenery and trees. I guess the money is too juicy. But not to just bash - they build on outskirts too.

Switzerland as a country usually strikes good balance between various extremes, much better than US or EU countries do. I have no doubt they will work it out, not ideally, but better than most. Immigration they tackled much better than rest of Europe for example.

And for the vote - its 1:1 Brexit. Vote for capping, damage your long term prosperity, and those unpopular jobs still will need to be staffed, or country will work worse, be dirtier etc. And if one can earn cleaning streets or putting stuff in shop shelves as much as cca doctor in France (with higher costs of life, but it doesn't have to be extreme), the amount of people willing to try coming and working is basically endless.

The idea one can freeze time and keep the country as some idealized image from their childhood (without the nasty stuff that happened ie in 70s to orphaned kids en masse, aka Verdingkinder), one would have to become second North Korea. Everything changes these days, massively and quickly. Dictators won't be sending their kids to study here under false names anymore, would they.