Monopoly behaving like a monopoly. The only real power the employees have in this situation is to leave, especially when the government's interests are also not aligned with employee interests.
Numbers tell us there are 10M open jobs in the US. Obviously leaving the devil you know for the devil you don't is not an easy decision, but I wonder how possible it even is? Are the rail employees in a position in which those 10M open jobs are not viable alternatives for them and how 'real' is the 10M number?