Mostly, but not always, legal auto insurance requirements don't strictly require insurance. If you can afford a cybertruck, you can probably afford to post a $75,000 bond or deposit with the California DMV (increases from $35k on Jan 1, 2025). Assuming you can't get liability coverage elsewhere.
For mortgage insurance, my understanding is if you don't carry property insurance, the lender can obtain lender placed insurance at your cost. That comes from a different, more expensive, market than direct homeowner insurance, but I believe it includes guaranteed issuance. But, if that falls through, I expect the lenders will stop lending, because they can't sell to fannie mae if it has no property coverage.
For mortgage insurance, my understanding is if you don't carry property insurance, the lender can obtain lender placed insurance at your cost. That comes from a different, more expensive, market than direct homeowner insurance, but I believe it includes guaranteed issuance. But, if that falls through, I expect the lenders will stop lending, because they can't sell to fannie mae if it has no property coverage.