>This is demonstrably false, as the Model S alone was first released in 2012 and still has a KBB value estimate of over $20,000 for a 100k mi very good condition example.

I agree EVs can easily last as long as any other car so long as you're willing to do a battery once but KBB value doesn't mean squat other than as a measure of original purchase price vs how hard the owners drove them into the ground. Considering who buys Teslas and how they get treated they had better hold their value or something is seriously wrong.

10,000 miles/year is not realistic in many (most?) parts of the country.

It's 13,476 for everyone. This link breaks it down by age and sex:

https://www.fhwa.dot.gov/ohim/onh00/bar8.htm

Now do one with 200k miles and needs a new battery.