I disagree with the concept of toll roads, at least insomuch as they're effectively double-taxing us: we pay taxes for roads already. Now you want me to pay again to use the road?

But really, if roads were not free in the first place, toll roads would basically stop being a thing and the roads themselves would become the toll.

It's a double tax because you're not paying enough for the road in the first place. I understand that there's this huge resistance to paying tolls for roads, but there's a valid reason for them for a variety of policy reasons (decongestion of city centers, insufficient funding to build out the road without private participation/tolls) that make it a valid tool for governments to lean on. In fact, the tolls allow for a more focused alignment of price vs usage (insofar as non-users of the toll road aren't tolled), which is a reasonable approach to take as a mixed pricing (taxes + tolls) model.

I think most roads should be paid for by tolls and taxes reduced accordingly. This is because roads tend to have a huge number of negative externalities.

In some cases the very act of having to pay increases the utility of the road to the user - see congestion charging. This ensures people who gain the most economic benefit from using the road are the ones using this precious resource.

Of course, your point could be applied to any government-provided service where there is a fee. The tram receives public funding but I still have to buy a ticket, after all.