Support for Amtrak-style rail is very low. Hell support for subway-style rail is still pretty low, but it has its uses in the truly developed areas (a la NYC). I'm ambivalent about Amtrak. I'm strongly supportive of subway-style rail, when it's appropriate (it's not appropriate aside from a small handful of cities).
There's multiple types of poor (rural, suburban, and urban). Are you not facing selection bias from living in a fairly suburbs-dominated metro (DC)?