The passenger modal share for rail in CH is 21%:
* https://en.wikipedia.org/wiki/List_of_countries_by_rail_usag...
For the US it is 0.3%.
Given that CH is land-locked, it's not surprising that freight modal share is 46%, because it has to get inland from a port in some way:
* https://en.wikipedia.org/wiki/List_of_countries_by_rail_usag...
This is higher than the US, but give that 127M Americans (40%) live in counties that are on the coast, it's probably not too hard to get things to them:
* https://oceanservice.noaa.gov/facts/population.html
* https://www.livescience.com/18997-population-coastal-areas-i...
Heck, Los Angeles county has a population (10M) larger than CH (8.5M), and would be the 10th largest state (between NC and MI):
* https://en.wikipedia.org/wiki/List_of_states_and_territories...
So a good number of Americans can get goods pretty direct without long distance inland shipping.