> There is barely anybody trained to repair them (even if they will sell you the parts)

No longer true at least in most decently urban/semi-urban Western countries/regions.

The parts shortage is real though, it's always been a plague for Tesla, and most established manufacturers never really recovered from Covid (and in the case of wiring harnesses, Ukraine) as a lot of their supply chain closed down shop for good.

> and if they are crashed significantly it's almost always a write-off.

That's true of all modern vehicles, no matter the engine type. Crash resiliency comes at a cost, the frame absorbs the crash energy and permanently deforms. Yes you can bend even an aluminium frame back into shape but it will never be as strong as before, and anything carbon-composite or plastic is out of the question as well.