Oh, they'll try, Definitely they'll try, but not sure they will succeed. First of all Switzerland really is ruled by its people, secondly Switzerland is importing some 33% more from the EU than they are exporting to the EU. Who will lose if there is a trade war?
But more importantly, this vote may not have its biggest effects on Switzerland, but on countries like the UK, the Netherlands, France, maybe even Sweden. That part of the global ruling class that goes by the name of Eurocrats are very worried by the elections to the EU "parliament" in June. It looks like anti-immigration, eurosceptic parties will make great wins in the countries mentioned above and some others. One has counted with some 20% of the total vote going to anti-EU parties. However, the vote in free non-EU country Switzerland may just help the eurosceptics to get an even bigger share of the vote. Let's hope so.
how do they feel about the guaranteed income?
Even Hitler wanted no part of invading Switzerland. Sure Germany would have ultimately triumphed, but it would have been at a very high cost.