Is it time to sack the striking tube workers?

They have the longest holidays, free travel for their entire families and are extremely well paid yet choose to strike like clockwork every 4 weeks punishing 2 m commuters - many whom are public sector workers facing compulsory redundancy. Even in this deep freeze- they don;t care about the misery they cause.Isn;t it time to say enough is enough and to sack the striking tube workers and give the jobs to the millions who are prepared to work ?