The referendum wasn't on noise or the legality of minarets broadcasting sound though, it was on the structures themselves. Churches can still build steeples (or even noisy belltowers). I fail to see why the simple construction of a minaret harms anyone any more than say a steeple of a church of a different denomination. If anything it just seems like legislation to tell Muslims that they are not welcome in Switzerland.
I think it is exactly that and this should be their right.
Minarets do not build themselves. There would be very possibly some money and influence involved from countries that do not share Swiss people values.
But then why not address that by banning foreign funding of construction of religious buildings? If Swiss Muslims want to build a minaret on their mosque I personally don't see the harm. But it's clear that others disagree.
https://news.ycombinator.com/newsguidelines.html
Edit: if you could please stop creating accounts like this and definitely stop creating accounts to break the site rules with, we'd be grateful.