Too-low corporate tax rates can't be a reason for this. Until the 2017 tax changes, the US corporate tax rates were (depending on who you asked) either on par w

Too-low corporate tax rates can't be a reason for this. Until the 2017 tax changes, the US corporate tax rates were (depending on who you asked) either on par with or significantly greater than those of comparable countries. So we can't attribute the US failure in developing public transit to low corporate tax rates.