What is the police doing? Uninsured motorists are illegal. They could perform routine traffic stops, ask the motorist to produce insurance, and if they don't have insurance send them straight to jail. Get these people off the roads.
It should be easy for people to grok that by having a large number of uninsured motorists on the road, their own insurance premiums are increasing. Thus, people should be petitioning the police to catch more uninsured motorists. Why isn't that happening?