Also, in many cases, Japanese luxury models under their own nameplate were sold under the parent company name overseas, like in Japan. For instance, the original Acura NSX was the Honda NSX elsewhere.
https://www.quora.com/Arent-Lexus-cars-just-Toyotas-with-fan...
My takeaway is that between two similar products, once people discover what is really going on, will they feel misled? And can people become informed in the first place?
In the case of Lexus vs Gotta, I'd guess informed consumers won't feel mislead. In the case of quality Camry vs a junky FauxCamry, it's more about being marketing in the FauxCamry that deceptively over promises is on a car that under delivers.
I think I've stretched this analysis about as much as I can.