If the UK hadn't demanded the opt-out it wouldn't be pointless at all.
People are, by and large, aware of what they are getting into when they start a new job, and working hours are a factor in most remuneration calculations.
If the working hours are simply too much for you, then you should find a different job.
Thus, unemployment is reduced, more money is put into the economy and the full automation apocalypse is delayed for a little bit. And if another employee can't be paid, then that business is not really viable and should close.