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I very much doubt they'll do this. There's cool Swizz folk but there's a reason they're the worlds largest haven for bloodmoney for the last 100 years and it sure as fuck isn't because they overall care so much about their fellow man.
Just for your interest, even if 100% of Switzerland would want this, it won't happen fast.
If the parlament won't do a Special law (like the COVID law) for instance, which was highly debated here, then it will at least take some months because all the preperations will need to be set, including rewriting the law so the  majority is happy.