"In particular, people who commute using public transit are happy to read anything which externalizes and validates their views about the viability of single-occupancy vehicles."
In general, it's not constructive to make arguments based on questioning the motivations of people you disagree with. I try to always assume rationality and good faith on the part of everyone, even when they appear to be brainwashed or just plain crazy from a distance. Trying to figure out why people might be irrationally disagreeing with you is a lot less useful than trying to figure out why people are rationally disagreeing with you, even when they are being irrational (because aren't we all, in one way or another?).
-- Edit 's/costs do not cover/costs do not include/'
(But that just says to me our gas taxes should be higher. :)
In particular, people who commute using single-occupancy vehicles are happy to read anything which externalizes and validates their views about the viability of transit.