Because long range passenger service has been bleeding money for years. The reason Amtrak was formed was because all the major rails were pulling out of passenger service. Ever developed country needs alternate routes of transport. Greyhounds are the cheapest, most unsecure modes of transportation. Have you ever ridden a greyhound? It's a dope fiend haven half the time and they wreck too. Rail transport is still necessary, it just needs to be operated more efficiently.
I've ridden Greyhound about as many times as AMTRAK once or ..I think once or twice each. How many Greyhound fatalities have there been over the last 5 years vs AMTRAK or commuter trains?
And I agree it needs to be operated more efficiently. Those blaming lack of funds on train crashes are pushing false talking points...the engineer is at fault with most of these accidents.