Switzerland's Muslim population is almost all from Turkey and eastern Europe. They're mostly secular as a consequence (the ratio of mosques to Muslims is 1:2500). The Muslim women of Switzerland don't, in the vast majority, wear any kind of religious clothing, and almost no mosques, current or planned, actually have minarets. The law is aimed at a paper tiger: the 10% or so of Muslims who are conservative (0.5% of the population by your reckoning) and the grand total of 2 mosques which are planned to have minarets in the future.
This law has nothing to do with the growing pains of cultural integration; it's just a bunch of racists' way of strengthening their position by picking on a tiny, unpopular minority.
Anyway, I don't really get what you're getting at, Gref. So the US at large has issues with its Muslim population? So what? Should we forbear to criticize Switzerland because we have problems too? Bullshit. You think we wouldn't say the same thing about our own country if this kinda shit passed here? You know us better than that. Thing is, it hasn't. For all the suspicion of Muslims in the US and anti-immigrant sentiment, you still don't see the kind of institutionalized racism that this law presents. Show me one single state that has a law like this on the books, passed by popular vote, and I'll shut up. There are plenty of states which have the same popular voting mechanism that Switzerland does; this kind of law is every bit as possible in the US.