The root of the problem is the electorate (not the leaders, who are downstream from the electorate), and that problem mainly falls under category A. They, the voters, have this idea that more social services, more compassion and understanding and more tolerance for the minor sorts of crime like vandalism and shoplifting will eventually bear fruit and cause the crime rate to drop. The failure of the plan to deliver the promised results is explained away as a matter of needing more time, more funding, more reforms... The plan hasn't failed; people failed the plan.

And of course there is a lot of D, people denying there's a problem at all. The "this is fine" response.