US is probably the only country that went back on rail transport. Every other country is taking it as far as they possibly can.
I don’t know for other countries, but Germany (that has a decent high-speed rail network, to be fair) had a rail network of almost 55,000 km in the 50s and less than 40,000 today. More than 300 train stations have been closed since the year 2000 alone.
EDIT: sources:
https://interaktiv.morgenpost.de/bahn-schienennetz-deutschland-1835-bis-heute/
https://www.allianz-pro-schiene.de/themen/aktuell/336-bahnhoefe-seit-2000-stillgelegt/