* Price
* Features
Those are tangible, obvious things. They are not subtle. They do not take months or years to discover or become obvious. They are (mostly) not vague or ambiguous. Does this car have lane assist? Yes or no. Will this car last me 20 years? ...maybe? That's a very hard question to answer. It's messy and complicated and has a lot of clauses to it.
So, consumers buy whatever is the cheapest available with the features they want, or the most feature-rich they can with their budget.
This demand forces manufacturers to respond. They find a way to cram more functionality in, at a cheaper price. If they don't, they will simply get eaten up by those who do, overseas or otherwise.
You can say you want quality and reliability all you want - it changes nothing. At the end of the day, the vast majority keep voting with their wallet - and they want CHEAP.