

Like some of the other commenters here, I would not be surprised if that were so. Because racism.
However, I wonder if the premise of your question is true. Are there really no stories about Mexicans in fairy tale Europe? Or Japanese at the court of King Arthur? Or would they have you justify it more than a European in Wakanda? I’m sure Hollywood would care less about these stories but does that mean no one cares? I’m not sure. And since I’m not reading a lot of Mexican or Japanese authors I can only speculate.
The allure of stories like these is the unknown factor, the exotic, the strange. Thanks to centuries of colonization of the rest of the world, Europe is not exactly unknown or considered to be an exotic place in the rest of the world. This might contribute to a cultural bias.







Yes and no. If you order your “gold kit” off of an ad aimed at boomers worried about losing their houses, it is probably scammy.
If you’re very rich and worried, you could stash away a bit of bullion at your home. You’ll have other things of value you could trade on the black market of total societal collapse before you’d need to tap into that resource. If you’re not very rich, a gold bar is not going to do you much good because it’s a big chunk of change tied up in one item. You’re more likely to need smaller denominations, like coins or rings, to pay for stuff in the apocalypse. Or you need to learn to smelt metal. The scam of it all is that people with a financial interest will advertize gold as the safe resource in times of high perceived crisis when the price of gold is already high or rising. It makes much more sense financially to watch the market and buy when it’s down.
Gold is also something that needs the economy to come back before you ran out of other stuff to barter with. If our apocalyptical total collapse lasts a long time, gold will not be as valuable as drinking water, food, or shelter. Smokes (incl. vape juice) and booze might be more useful for a longer time.
I’m not rich and I’d sooner go down the prepper route than buying gold.