> I could make the argument that fuels that burn are unsuitable for automobiles which crash into each other frequently.

Lithium ion batteries don't like crashing into each other either. The article mentioned that lithium sulfide batteries degrade differently than lithium ion, so fires as a result of heavy use may be reduced, but fires as a result of unscheduled disassembly seem likely, and could be worse than fuel --- you can dump fuel or circle to use it up, but you can't (probably) dump batteries, so you're always going to have lithium available. Not sure if the lithium sulfur compounds are less flamible than the compounds found in lithium ion.

You're correct that batteries are much more suitable for cars, especially commuter vehicle and things like garbage trucks that have relatively limited routes and sit idle for much of the day. There's why were seeing electrification take hold in cars, way before it takes hold in planes (if ever).

Diesel fuel won't burn as gasoline does. Gasoline is ok here to, if compared to a hydrogen-oxygen mixture explosion ;)

Look at some yt videos of li-ion or li-po fires, this will change your mind