As someone who lives on the UK, I've never once seen a vandalised CCTV camera or even a vandalised road speed camera (which I'm given to understand is more common).
I've seen many of the early "Gatso[0]" cameras vandalised.
My understanding is that they originally used film, which had to be retrieved, so trying to burn it down with a well placed tyre had a chance of avoiding a fine.