People do not pay taxes anywhere near the level needed to maintain the existing roads, much less expand them. They also do not pay enough for the health costs their driving inflicts on the people whose neighborhoods they drive through, nor the cost of the climate change we’re all living through. Similarly, while most countries have free movement that does not guarantee availability of space to put those extra lanes - your freedom to drive ends where other people’s property begins.
Governments can buy property. There are lots of things that can be cut by government to get more roads - all that public assistance that goes to a small portion of people can be re-examined and reapportioned to help all people via roads rather than a large portion of them who are leeches.
Climate change isn’t some doomsday. Relax about it, I promise you that you and billions of others will be fine. Many of us are tired of living our lives for the Doomsday Climate Cult.
