Nobody would miss them. Or you. Not that this is an argument in favour of Corbyn, it's just an argument against silly posturing
Perhaps not, but the two public sector workers my taxes support would certainly miss their jobs. It is directly connected, even if they, and you, refuse to see it. There is no magic money tree: Every single pound spent in the public sector has come directly out of private sector workers pockets - government borrowing only delays that. When I leave the job it goes to India.... not sure they'll want to pay for the NHS.
Far from being posturing, it's a sensible insurance plan. Corbyn wants the state to own, well, pretty much everything. And he has not one bean to pay for that. So whatever money he uses will, as ever, come out of private individuals pockets - just because he doesn't announce a wealth haircut doesn't mean that isn't what he is doing, and by the time he does announce it, it will be too late to flee. I pay far too much for the state as it is - I'm certainly not hanging around for them to come back for another bite of the minority share they left me with in previous years.
So where to go? America, Australia, Singapore, Hong Kong, Switzerland, etc etc There's a whole world out there. Even if I was desperately daft enough to wish to live under socialism, I'd be better of going to France where the weather and the wine are better.
This assumption you have, that because you wouldn't move nobody else will, is one the country cannot afford. Literally, it cannot afford it.