Wasn’t Brexit supposed to save them money so they can pour it back into the NHS?

Not much up to date with UK politics but striking Doctors sounds a bit irresponsible. I totaly get the need for fair compensation and they should totally get that, no question, but is it a good idea to strike in the health industry? There have to be better options, no? Or maybe I‘m just uninformed but this sounds like it’s puting peoples health at risk, which feels wrong to me.