By we I mean average, not all. More in the "nobody criticizes it, even though there are plenty of reasons one could or should" less in the "nobody has a right to criticize a massive government spending project that has demonstrably warped society as a result".

I've gone through way too many debates on the costs and benefits of free public roads, and I've argued from both sides. Be critical - just don't be hypocritical (which a lot of people are when they make a false dichotomy between the value and feasibility of rail vs road).