I don’t have any answers, but let me give you an example of why the laws are NOT enforced...
We have an imam in Oz who maintained the reason he did not register his motor vehicle was because the koran did not require him to do so.
He probably instructed his followers also to forgo registration of their motor vehicles on the same grounds...
He was fined of course.
However, there are some five thousand members of his community, and the majority of them would own a vehicle. They could almost all be driving unregistered vehicles as result of his instructions, and quite probably also driving without a licence; because allah never told them they needed one...
Now what are the police to do?
Set up a force to check all muslim vehicle-owners and muslim drivers?
The howls of descrimination would be deafening, so they get away with it...and are only apprehended as the result of some other traffic infringement, or if an observant police-officer notices the out-of-date (or total lack of) registration sticker.
To break even the most basic of our laws is to follow the koran, even driving an unregistered vehicle is a PERSONAL JIHAD.
I do get what you’re saying...but...
Until we ‘let them howl’ nothing changes. I am tired of worrying about charges of bigotry. Hold our government/officials accountable to/for enforcing the law and / or make them look for work come election day. That’s the only real answer I believe in, short of military action.