That's a fair amount of misinformation in your post.
1) Any reliable ICE brand goes well above 200k miles with basic maintenance. There's a long history here of reliability and why so many drivers choose boring yer reliable brands like Toyota, Honda, Mazda, etc. If you choose brands that do not prioritize reliability then that's on you. (i.e. Mercedes drivers switching into Tesla)
2) Mileage (distance) is not actually the determining factor here in longevity, car age is. Average age of ICE cars is around 12 years in the USA. That's average, which means there are many cars that are much much older than that. Battery cars will be lucky if they average out 8 years as a fleet. Probability is 75%+ you're looking at a battery replacement at the 12 year mark if not sooner. Vast majority of drivers will not replace said battery making the car a throw away due to cost (no one financially competent spends $10k-$20k on a battery for a car worth less than $10k). This will absolutely drive fleet age down, resulting in a younger fleet and more disposable cars. Replacement batteries are not plentiful or cheap and there's no reason for that to change due to the industry strategy.
"Tesla still averages being able to hold 90% of original charge"
3) Lucky you. It's well known in the community first year degradation is typically 5%-10% and there after 1-2% per year till a major failure. Do you know how to measure your original charge? Have you driven the car from 100% to 0% to verify total battery capacity or you just going of the BMS hoping it knows the true capacity. BMS is regularly off by 5%+ so for all you know your true capacity is already nearing 80%. If you know Lithium battery science then you know after 80% the capacity hits a cliff rate of degradation accelerates. Few people drive their cars below 10% battery so they don't really know.