Regarding the repair / recycle aspect of EV's - I watched a pretty eye-opening video on ed china's youtube channel, where he went through iirc the Bosch certification training to work on EV battery packs etc. I think that the current situation is pretty much if you are (like fleet buyers for example) buying/leasing through a main dealer, getting main dealer service work and repairs, then it's likely that for the duratiion of the lease, you're very likely to be able to have the car reworked with replacement batteries etc - the old ones then being able to be opened, split and re-conditioned/refurbed. But, as the current incarnation of EV's and their power cells are (relative to ICE technology) a relativel immature technology - there simply isn't the same network of non-dealer chain garages that are a) prepared to invest in the technology required to work on ev's and b) prepared to re-skill where needed to do so. This creates a bit of a void in the market - for people like me for example - I drive a old petrol Audi - had it from new in 2000... it did 3 years as a leased vehicle as my company car, and when I left the company, I asked if the company would buy out the lease, and sell to me at cost... So, it was dealer serviced for 3 years and 78k miles - since then it's never seen the inside of a main dealers. I'm lucky to live near to a VERY VERY good VAG Group Specialist independent - pretty much everyone that works there was trained at VAG dealers - they have the same diagnostics, same specialist tools, and approximately 1/3 the labour rate per hour - plus they don't "garden" the job and charge for stuff it doesn't need - they understand that a return customer is worth far more than a quick extra £200 one-off... I've chatted with the owner and he's scratching his head at the moment - for now they're not going the EV train/certify route - mainly because they'd very likely need to move premises or build a second garage to keep the petrol/derv and EV stuff safely isolated due to the nature of their current building.
My point of that ramble is that if established well-respected marque-specialist independents aren't moving into EV work yet, then there's NO WAY that the smaller "general garage" that is the lifeblood of the 10 year old ICE vehicle is going to at the moment.
So it's either going to have to be dealer service or new independents coming up as a new business, just to work on pulling, refurbing and re-fitting batteries - without that kind of support, yes, there's an awful lot more EV's that are going to go into breakers and recyclers IMO.
TL-DR - EV's still a relatively immature product, and don't have the infrastructure (yet) to cope with older vehicles when they, as all vehicles invariably do, go wrong.