You never see a Sienna getting loaded with bags of concrete at Home Depot. Can't say that about a Town and Country. You never see a family of 5 pile out of a (newish) Corrla. Can't say that about an Altima. You never see a 4Runner towing something way too big. Can't say that about a Tahoe.
Toyotas sell for a premium used because they get sold to "premium" customers who keep them nice.
If Toyota financed the people Chryler and Nissan would finance (insert neggity joke) then in 20yr you would see all the upper middle class HN types shitting all over Toyota because Toyota would be the poor people car. You'd see them in all sorts of states of disrepair and neglect and they would be stereotypes as unreliable, after all why else would they be driving around on 3/4cyl?
I can't believe I'm defending Chrysler and Nissan but the blind Toyota worship is just that, blind worship. Most of their niceness comes from people keeping them nice. The real world edge between manufacturers is very, very slim.
In end of life they are no better or worse than anything else that's been treated the way they have (VW's regularly scheduled electrical fires notwithstanding)