Here is my personal observation based on real comparative data...
After a lot of research, we decided on a RAV4 as our second vehicle. We have owned Toyotas since 2000. We bought a new US built 2017 Limited. It is garaged and gets very little usage (7,000 miles total in 3 years). Our everyday car is a 2014 Prius PlugIn (built in Japan). Based on my research, I also helped our son buy a used Japan built RAV4 XLE. It is his daily driver, so gets lots of use and is parked outside.
On to the data in least to most worrisome order...
1. Our US built RAV4 had a careless dent on the roof pillar(?) above the rear door as delivered, probably dealer related when they installed the cross bars of the roof rack. Least of my concerns, but still an issue.
2. We have already had to replace the battery. This is despite making sure the car did not sit idly for long periods of time.
3. I have noticed and submitted a complaint to corporate Toyota about paint durability due to chipping and etching. We have a dark grey metallic, and not the white that was subject to a TSB. We already have have half as many chips on the hood (as well as in other unusual places like on rear side fender) than on the Prius which has over 70,000 miles of Los Angeles commuting. It appears the adhesion between the paint and primer is the weak point. Even worse, two bird droppings on the hood that were promptly cleaned off within a day have etched the paint. By comparison, the Prius is parked outside in our driveway under an overhanging tree (where it can be recharged and allow the RAV4 to enter and exit the garage). It gets exposed to a lot of environmental conditions, dust, blowing winds and lots of bird droppings which aren't as diligently cleaned off. Not a single one has etched the paint! Our son's RAV4 (metallic red) also has no etch damage. Are domestic restrictions imposed on paint materials and processes for environmental concerns the culprit, or is ours a unique "lemon" on the paint? Time will tell...
Bottom line...buy a Toyota RAV4, but stick with Japan built.