Instead of reacting viscerally maybe we can breakdown the problem.
In most states the insurance is attached to the car, not the driver. There are some policies that follow the driver, but my understanding is that this type of policy is rare.
If we assume that the policy is for a car, then it follows that any accident caused by that vehicle would be the responsibility of that insurance company, regardless of who is driving the car (e.g., friend, spouse, son, in laws, etc.). As such, it seems reasonable that if there are other people in the family who have driver's licenses, an insurance company would want to ensure that anyone who has easy access to the car should be assessed a cost of potentially using that car. Now this could be an *insurance company requirement*, and not a legal requirement (so you know, not big or small govt thing...). I'm not a lawyer, and don't live in ME, so this is speculation on my part, but if an insurance company gets burned enough times by paying for accidents caused by non-policy holders then sooner or later this is the end result. Is it that hard to imagine that some folks try to save money by suggesting that their 16 year old son will never drive their Camaros when in reality we know that a percentage of those people are lying?
This is from the Maine govt website: "My teenager just got his license. The company has added him to my policy even though he's not going to drive my cars. Can they do that?
Yes. Any resident holding a drivers license is considered to have access to the household vehicles. Your policy includes any resident family member as an insured under your policy. As the policy automatically provides coverage, the insurer is allowed to consider any resident driver when establishing the rates for your policy. "
https://www.maine.gov/pfr/insurance/faq/auto_ins.html
This suggests that insurance companies "is allowed to", but are not legally required to, add someone with a driver's license to the policy. Also note that this covers family members, not roommates. Without specific policies it'll be difficult to have a further understanding of this.
Alternatively we could have a system where the policy always follows the driver and not the vehicle. But if that were the car, the law probably needs to be a federal one rather than a state one (since mixing the two would be incredibly inefficient from a legal perspective). Then we'd be forced to check driving licenses every time someone new gets into the driver's seat. Not sure that's a better solution.
Lastly, freedom or not, an auto insurance company is not obligated to insure an individual and you're not obligated to go with a specific carrier. If you don't like their quote, go somewhere else. If you don't like insurance, take public transportation or walk or bike or whatever. But last I checked driving is not one of the rights protected by the constitution or interpreted as such by the Supreme Court.
Edit: Just thought about this - if insurance companies did NOT do this, then you'd have nobody except moms having insurance policies in any family. Why add anyone else? Even the dad is likely an increase in risk.