More railway lines? Yes. HS2 in particular? Not really.
There are higher priorities: electrification of the railways, many of which are still running diesel trains; increasing capacity on intercity services; improving existing connections; reinvestment in branch lines; newer trains.
A well-staffed and free or cheap integrated rail and bus network is the sort of large-scale infrastructure project that should come before HS2.
Some of the arguments used against HS2 are weak. But there is also good reason to question the arguments made for HS2 as a way to create good jobs, as a way to help the