Warren Buffet (as Berkshire Hathaway) bought Burlington Northern Santa Fe (BNSF) for a reason - it is very profitable.

The merger of Canadian Pacific with Kansas City Southern is even larger, and is now a railway that spans North America from Vancouver to Veracruz.

The freight railway system in North America is massive.

https://en.wikipedia.org/wiki/BNSF_Railway

https://en.wikipedia.org/wiki/Canadian_Pacific_Kansas_City

Yes but we're not talking about freight. HSR is never used for that.