Switzerland has plenty of tariffs around farmed goods to keep our farmer market healthy. But it does indeed make products more expensive (and higher quality) and everybody here knows and most accept that.
Can't really comment on "more expensive = higher quality" since I'm biased towards France where I believe they're better at cultivating tomatoes than the Swiss.
If you do internal subsidies (the EU/US approach) instead of tariffs on imports, then a fraction of your taxes gets diverted to farmers instead.
Sadly this whole issue is difficult to side-step completely because if you do neither subsidies nor tariffs, your local food industry just dies and that is a really undesirable outcome if you want to avoid famines.
If Switzerland opened to EU competition then they would’ve seen multi store farming like in Netherlands. Subsidies would fare better.
https://www.thetimes.com/travel/inspiration/ski-holiday/endl...