[twoodfin]

While it’s certainly accurate insurance is a regulated industry, nothing you listed explains why it’s a good idea to allow government to set or approve rates vs. ameliorating those social concerns through other means.

[20after4]

Because insurance isn't optional. If the law demands insurance then the law must assure equal access to the legally mandated insurance.

[twoodfin]

Which law demands home owners carry an insurance policy?

[Kalium]

In the US, it's a requirement of mortgage lenders. This makes it less of a legal requirement and more of a de facto requirement, as most homes are purchased via mortgage in the US.