"just one more lane, bro - we already have freeways, lets just spend billions making them wider" is just asking for more traffic. Case and point, the Katy Freeway in Houston. A million lanes, always full of traffic because of induced demand. it's the same problem you see in California. Texas is also just following California's 1990s mistakes and building sprawling suburbs continuously in all directions - filled with predatory HOA's and making the flood potential even worse from the onslaught of destructive hurricanes that Texas is likely to get from now on as the Gulf of Mexico increases in temperature by the year. Taxes are absolutely bound to explode in coming years as the infrastructure lacks the tax base to maintain, and suburban neighbourhoods are going to start needing to rely on state coffers for funding, if not go bankrupt. That's what happened to California and Texas is falling into the same trap.
Also, Spain is about the same size of Texas, with a comparable, yet even smaller economy and yet cities like Barcelona and Madrid have awesome commuter train systems and the country has the largest high speed network outside of China. Texans could easily have this, but are often just insecure dorks who demand pickup trucks the size of a sherman tank because they rely on them for proof of manhood, and infrastructure to hold them. Unfortunately this isnt only seen in texas, but it sure is brought to an extreme degree there...
I don't think we should give up on cars altogether, as they have a place, especially in rural areas that are spread out but we shouldnt be giving land up for cheap to developers so they could build shitty suburbs, and then spending billions to accommodate them with wider road projects and more shitty wasteful parking lots when trains and denser housing are far more efficient for everyday commuting and a happier, more social way of life. Texas is all too often seeing the transit oriented developments that are becoming popular in other states and scoffing at the idea.