Interesting that those supporting the motion claimed it was because there was no space left for new arrivals and that it put too much pressure on infrastructure like trains and yet the largest support came from the countryside which proably has less overcrowding and the cities were greatly against it.

Makes me think that "overcrowding" wasn't thre real reason...

Probably a pretty big selection bias there. People who don't like crowding and want space are more likely to live in the country. People already living in a dense City are less sensitive to more of the same.

I have a friend who voted yes and he lives outside of Basel because he thinks the city is too crowded. If you've been there you might find that amusing. His most vocal complaint is about too many people on Swiss hiking trails and difficulty in Booking huts.

More recently, he was laid off by a multinational pharma company where most of the Swiss office is now German immigrants.

That's not to say culture isn't a factor, but it would be a mistake to apply American ideas of racism to it