Most of what libraries do technologically is now outsourced to SAAS companies that specialize in the library space (there are at least 2 major one in the US, and I think at least 3 or 4). (encore and bibliocommons are the 2 major ones that I remembered and am pretty sure I've seen at least 2 others).
If everything you are doing is in the cloud, I'd argue that recovering from a ransomware attack is more of a question of if the SAAS company did its job right (which it should be more capable of handling). Of course, that's a reasonable question if they did (similarly why I prefer paying with paypal or google or even (as not so common) amazon third party payment systems than a retailers own internal payment system, yeah they might screw up too, but they invest a lot more into not screwing it up).
I've noticed Spydus seems to have a big marketshare in the UK.
Your assumption that enough people would change their vote (or non-vote if they didn't turn out previously) based on this to make a difference, I think is unlikely to be correct. People complain a lot about public services when they don't work well, but seldom consider (or do but seldom prioritise them) them at the ballot box.
Sure, let’s close down all libraries and all public services for that matter. Let the public feel the pain. They will understand and vote better next time, right?
You think it is lack of information that got people to vote for this nonsense?