I have drove in 49 out of 50 states (never been to Hawaii) and Illinois ranks the worst in my opinion. It’s like they ran out of asphalt and stopped doing any repairs 10 or 20 years ago.
To people not living in the U.S., feel free to complain about your country’s roads too.
Road construction has long been an afterthought in the state, along with all infrastructure. They’re quick to put plants and industry in place, then have heavy trucks destroy what bit of road was left… Then take half a decade to decide that maybe they should have built the road first, but now have nowhere else to put it.