Paris' mayor, Anne Hidalgo, is incredibly unpopular in the rest of the Parisian Metropolitan Area (whose government is right-wing under Valérie Pécresse). Much of these areas are still car-dependent beyond belief with bad-to-awful public transit, meaning they are progressively getting cut-off from car-hostile Paris. Paris is completely unaffordable to live in, so it is normal for the working class to have a 1h+ commute into Paris.
This understandably breeds resentment from most people who have never heard of the term "induced demand" or think that the lack of rail transit it Hidalgo's fault.