A negative in the short term leads to a longterm positive.
I do not want to die a martyr to the fight against traffic cams.
Also I see no other method of doing this. If you go to the council and say “I want to replace this highly profitable traffic camera making hundreds of thousands per year with a traffic island that will make no money at all” the decision that any team will make internally is obvious.
That kind of poses the second question as to what, in the interim, will be cut as per budget, but that’s a sidenote. I guarantee you without change far reaching enough to societally gain a new understanding of public space and roads, when the last speed cam is dismantled you’ll find all the roads still suck ass and will not be redesigned. Once you have the change so far reaching that you can reunderstand basically every road, yeah, then you don’t need the traffic cams anymore and they can be dismantled.