I want less government regulation because I believe it is philosophically illegitimate. At the very least, it's irreconcilable with the intent of this country's founders.
Practically stated: If Oklahomans, or residents in a county in Oklahoma decide that it should be illegal to import or purchase a Toyota, it's entirely within their rights to do so.
If the Feds, on the other hand, force Oklahomans to accept Toyotas on their streets, and offer subsidies to Toyota owners, and declare that Toyotas always have the right of way on OK roads... well, then we've got a problem.