You aren't wrong, but you are being a little unfair to Amtrak. You always see people saying the same thing about amtrak and other forms of public transit as well as services like the post office. Yes, amtrak receives subsidies, but prior to covid, they had a 99% farebox recovery ratio, i.e., 99% of the cost of a ride is covered by the fare, and the remaining 1% by subsidy. Covid dropped travel numbers across the board, but they are still forecasting 86% for this year
Compared to the interstate highway system, which is covered 0% by fares, Amtrak is performing incredibly efficiently. By mentioning that amtrak is subsidized, you are insinuating that driving is not.
And they don't seem to wear sunscreen