I rather think this is not entirely what I would like. If there are cuts, then they must be across the board.
The idea of IT departments being maintained, whether by stealth, craft, art, or deciet, at a time when we have slashed or eliminated public libraries, day centres for the elderly and mentally impaired, meals on wheels, childcare, and domestic physiotherapy is very unpleasant.
Most IT people are youngish, resourceful, and intelligent, and frankly I'd rather throw them (us) out of work than teachers, care workers, and home attendants. We are far more likely to be able to get another job.
I can't say that the achievements of IT in the public sector have been spectacular, and if they are suddenly going to find ways of reducing TCO then I'd like to know why they could not have done so a decade ago, instead of propping up Microsoft, Capita, et.al.
There is no case whatever for special protection other than self-interest. I rather thought we had a more mature world view than that.