I've replaced a few ICE batteries in my time. You can replace them at home in 5 minutes and they are a gazillion times cheaper than an EV battery. :)
> ICE has a very complex drivetrain with thousands of moving parts. Belts, transmissions, gears, fuel filter, oil seals and gaskets
This whole thing about ICE is FUD IMHO. Yes, complex, but on modern ICE vehicles is highly-reliable.
Also I would argue with EVs you are replacing ICE "complexity" with other complexity. For example, in EVs you now have individual motors on four wheels (i.e. potentially four points of failure), you have all the software in EVs etc. etc. etc.
I would also argue that the ICE "complexity" of what you speak is NOT where the bulk of ICE maintenance costs come from. Afterall, topping up the oil and replacing gaskets is kids work.
The bulk of ICE maintenance will ultimately be the same as EV maintenance, i.e. all the wear-and-tear parts I listed already, such as tyres.