Yes, I agree to some degree. Marketing would work if products are cheap, but not for a $100k car.
For example, TEMU and SHEIN blew up past few years because people can buy the same products that are cheaper than say, buying from Amazon. Products may be more inferior, but it's cheap, so consumers are willing to pay and it comes with free shipping.
For a $100k car, for those people who can afford it, they don't spend money fruitlessly. They would do comparisons, watch reviews on Youtube, do some research on this product, etc, do a test drive, basically, the whole package, then make a judgment call if it's worth it or not. To say most Americans have not heard of Lucid is a blasphemy. It's just either they don't care about cars in general or they can't afford it so why even bother?
Let's be honest here, the majority of Americans are not that wealthy at all, so for a car to be $100k and catered to people who can afford it, marketing certainly isn't an issue.