i had 1994 aurora worst car ever made. more problems than any other car i had, more electrical issues than old seville and yugo combined. absolutely nothing in common with any toyota.
and this is coming from a guy who at one time only drove Oldsmobiles, i had 1985 cutlass cierra, 1988 delta 88, 1994 aurora, 1996 ls. and friends of mine had accords, maximas, Camrys. not to mention 2 years work in auto repair shop. so i can compare things, but after i got brand new 2006 accord v6 , i never looked at domestics again. i have to agree that up to late 90s used American cars were cheaper to fix, cost cheaper to buy, thus more popular on used market, but their reliability was not as good as Japanese cars.
if anything it actually declined for Japanese cars over time, my 09 and 13 accords build quality was not as good, uneven gaps, cheaper materials, some features that were standard, became options, but it did not affect reliability much.
actually from experience of driving Honda and Hyundai for many years, i say Hyundai are better than Honda now. i'm generally happy with my 2018 honda pilot, but brother in law's Santa fe is build better. feels more expensive, rides smoother, but pilot is bigger, burns less gas, and has more powerful engine, my brother in law has long one with 3,3l v6.