Where a vehicle is made counts much more in the grand scheme of its lifetime more so than who owns the production line. For example, Toyota and Honda both have assembly lines here that are strictly regulated (as much as they can be) towards imitating the production plants in their homeland. Their existence here creates numerous employment opportunities as well as giving back to their local states/counties and the nation in the form of tax revenue from production to sales. This is also due to the fact that they are also sold as fleet vehicles and cannot fit that requirement without being assembled domestically, so they have been doing this waay since the 80s for some better known models across the board. This negates the argument for the idea of "foreign vs. domestic" since it becomes more semantics in this sense and exposes the real root of the reliability problem which is not just brand or engineering, but rather WHO assembled the cars i.e. UAW.
The real difference is when you actually see a live production line, you take a look at the workers who are in charge of assembling your vehicle every step of the way - this also includes robotics. I have been lucky enough to visit the Lexus assembly plant in Tahara, as well as the one in Georgetown, KY for their maiden production of the ES. You will not believe how much difference there is in the quality of work. In Japan, each assembly worker is a specialist, and for items requiring intricate detail such as body fitment, panel gaps, alignment and such - right down to sticker/label placement - they use women. Each one is highly trained, much of the time blindfolded and taken through years of sensory training that results in not only patience, but a high level of attention to detail that is unmatched within domestic assembly. They can not only identify panel misalignment by sight, but also in some cases measure the gaps by feel right down to the millimeter. This goes right down the assembly line with very strict tolerances for paint, welding, laser alignment and cutting, fasteners, you name it. Every one is an expert at all jobs and can fill in should someone be missing without much of a capability gap. Every third engine is tested for tolerances and operation, and in the case of special models ("F" series cars) every single one is tested. Now compared to the tolerances within our domestic plants, and the general attitude and practices of UAW workers, along with testing of every 50 or more engines, you can see why we have issues with domestically assembled vehicles. If you ever noticed, your control boxes are labeled with colors instead of connector labels such as T15 etc. It is so lazy and dumbed down, it gives you an idea who is at the line. I even have come across many new vehicles I had out for fleet delivery that were not connected properly when new. The attention to detail remains in what we consider premium brands such as Audi/Porsche/BMW/Mercedes, with their weakness being low lifespan due to heavy use of new materials/eco friendly composites. In all the sum of their production from engineering to parts sourcing to assembly is what determines the overall vehicle lifespan, and how well it was or wasn't assembled correctly bears the heaviest weight in that equation.