My proposed response has been making cars safer and more reliable for years. I don't care if it applies to bitcoin or not, we're talking about cars. Next!

The ability to leave your car in a public space while shopping is a major part of their utility. Cars are therefore common, left in the open, and valuable, but not particularly portable without being turned on.

Jewelry, TV’s, bitcoin wallets etc aren’t just left in the open. Your house, front lawn etc is valuable and accessible but not generally mobile.

Yes, and they generally are. In almost all states, sellers have to ensure that the things they sell are "fit for purpose". It's reasonable for us to ensure that they meet the basic requirements of being whatever they are - and for cars, part of their basic purpose is to sit in insecure areas and ensure only authorized users can operate them.