Seriously, it's no longer even funny to us Europeans how bad your infrastructure is. I always thought it's because the population density is much lower in the US, but I don't believe any more that it is the primary reason.
No, it is due to population density. If your country has 2× or 4× the amount of road area per capita but not correspondingly more taxes per capita, the infrastructure is going to suffer. Strong Towns ( https://www.strongtowns.org/ ) has many articles on this topic.
