Rules can be enforced even in western democracies.
Most people would agree that most traffic regulations makes sense in general. Not just necessary in that specific situation. Like "yes speed limits make sense but in this street it should be 20km/h higher then it is". "Yes speeding cameras make sense when used at places where speeding is quite dangerous. But do they need to use them here where it's not really dangerous just to earn more money with fines" etc.
Still you can enforce regulations the _population_ doesn't like, but it's really hard to do so effectively for more then just a short amount of time.
I can't imagine this is true. Not many drivers overtly claim to support rules against speeding, but I expect most people would not campaign to remove them because it's not hard to imagine potential problems in their absence.