This is a common misconception. Usage fees (gas taxes, tolls, etc) only cover ~50% of road costs, and that doesn't account for any of the negative externalities imposed on society in terms of air, ground, water and noise pollution.
Is the land for the roads funded by gas taxes too? I doubt it.
Effectively you’re condoning stealing a bunch of land from the commons, because the thieves paid for the improvements on it? (Which only benefit themselves - non-drivers are perfectly happy with non-“modern” roads).
2) roads were there for pedestrians long before cars were invented - they got taken from us for cars