Maybe a personal analysis: It's a trend that is growing all over Europe. It's the equivalent of overtourism and a problem for the ruling parties (except the SVP that proposed it). Expect it to continue quite soon in Switzerland and other European countries (France, Germany etc.). Of course it doesn't make sense to curb immigration at 10 Mio and many know it. It was also for many a vote against the ruling parties. Although Switzerland is an immigration country, Swiss don't think this way. It's more farmer/alpine style: Welcome guests but expect them to leave again. Many Swiss also don't interact with foreigners a lot, including myself (besides at work). Many of my friends don't want to give up their prosperity. They are fairly advanced in their career and it's more about enjoying life. So for many of them it's more a rational decision than really a belief we should have more immigration. As long as I can benefit, it's good. For younger people it may be different. My wife, who is not native Swiss, was in favor. And compared to other countries, I think Xenophobia is low.
> It's a trend that is growing all over Europe
The current system permitting freedom of movement across the continent while devolving immigration policy entirely to members creates a fundamental tension the EU needs to resolve. Because otherwise, Berlin can basically dictate EU immigration single handedly, which is bound to generate backlash even if they run a perfect programme.
How are the job prospects and housing prices? Switzerland is beautiful and I would gladly move there for six or so equivalent figures..
Can you explain why you think xenophobia is low? My experience as a swed is that xenophobia and trying to avoid immigration often go hand in hand. You do not have a large Swiss right populist semi racist party like most other European countries have?
> And compared to other countries, I think Xenophobia is low
I would agree and also suggest that initiatives like this play a large role in doing so. While there's a lot of bullshit arguments coming from the "yes" camp they do make some reasonable points and it's important that we discuss them to show what the trade-offs are.
I cannot speak for all Swiss but knowing that it was a democratic decision to continue with some, high skilled, immigration makes it far easier to accept than if some government employee in Bern would've made that decision single handed.