The higher the ‘minimum wage’ the more likely illegals will be accepted. In the short run this creates a servant class - in the long run the host country is destroyed.
In pondering this, I wonder if the opposite is the case, that jacking up the minimum wage might work against hiring foreigners.
That is, Switzerland has very tight employment rules, that are strictly enforced. It is already quite hard to hire foreigners, and it is getting even harder, and more expensive.
So if the minimum wage is $10/hr, it already might cost marginally more, all things considered, to hire a foreigner. And if they jack up the wage to $15/hr, it may cost perhaps $17-20 to hire them in the future.
In other words, a very different model than is seen in the rest of the developed world.
In any event, it will be interesting to see what happens, from an economics point of view.