okay, can't we have a middle ground then? On one side, nothing happens because of corruption, regulation, partisan interests etc. On the other end, there is authoritarian regime that can get things done at insane speed but at the cost of the environment and its people. Is it that hard to build stuff for the greater good of the public but respect mother nature and workers' rights at the same time?
Yes it is hard. What makes it hard is the analisys of the problem is wrong and so we don't know how to fix it. Some of the problems were hinted at above, but the response of why we do it that way was also hinted at and should give anyone wanting to fix the problem pause. There are many other problems that are at fault too that were not hinted at. Some of them I know (but I'd need a book to write out), but there are hints of more things that I'm not aware of. I also have reason to suspect some of what I "know" is actually wrong, but I don't know what and cannot know until someone tries it thus showing why it is wrong.
> Is it that hard to build stuff for the greater good of the public but respect mother nature and workers' rights at the same time?
It is, it takes political effort and most importantly it takes adequate staffing on the state/local government for supervision and proper tender processes, and both is really short in supply - one might say that the latter is done on purpose as an excuse to privatize yet another piece of public infrastructure.
Of course a private toll road company can build faster and keep up with maintenance, it doesn't have to deal with tender bullshit, it can hire enough of its own staff to make sure vendors don't screw them over, and if it's a large enough company they can hire their own construction crews. Oh and obviously it can provide a source of extra income for the grifter politicians that vote for the privatization...