Romans did collect taxes for using a bridge 2.000 years ago.
There was the alternative of crossing the river yourself or hiring someone to do it(ferrymen).
I have been working in automation for a while. It is true that companies could fire more and more people and replace it with robots because they are less expensive.
It is also true that now people could compete with big guys much cheaper because robots will become dirt cheap. We are starting to see with 3d printers(that are robots themselves).
War has started, big guys are ok with people playing with toys in their basements, but want to make it illegal for small guys to compete with them.
This is what software and business patents are about. Only big guys, most of whom were in the past little guys , creating a legislation in order to make it impossible for newcomers to do with them what they did to others in the past.