It's only going to appeal to a niche slice mostly America/Anglosphere/Western Europe.
Given the massive influence it had in Japan and Korea this seems like a weird thing to say. JRPGs, K-MMOs and so on as we know them, simply wouldn't exist without D&D. Unless you consider them the "anglosphere". It also seems like RPGs are growing a lot in Eastern Europe and have had popularity there since they've actually been available. I suspect lack of translations together with fewer people speaking English as a second language is the main limiting factor there.
Newer players are playing differently if course but they didn't grow up with ye olde Disney cartoons or Grimm's brothers and Weddings etc.
Who did? I mean, I'm British, I've never read Grimms, never had it presented to me. Don't really know anyone who did. I'm familiar with the stories second or third hand, usually via cartoons or the like. What even is "Weddings" referring to?
What is a "newer player"? Under 50? That seems to what you're getting at. That seems like a bold definition of "newer".
They tend to view what the west calls cultural appropriation as cultural APPRECIATION/enjoyment/admiration/enthusiasm.
I think the issue is that cultural appropriation is problematic in two ways:
1) It can promote racist attitudes and racial stereotyping, whilst misrepresenting cultures. This is the "Oriental Adventures" problem.
2) It can take stuff from marginalized, powerless or weak groups/cultures, and misrepresent it and indeed take it away from those groups, when it may be part of what very little they have. This is a problem particularly with indigenous peoples like the Native Americans. Ironically because these cultures/people are so marginalized, this tends to attract less attention unless it's really grotesque.
What I think won't stand the test of time is claims that like borrowing stuff from India/China/Japan is "cultural appropriation" in a meaningful sense. All of these countries are cultural powerhouses, which constantly draw culture from other cultures and re-work it. None of them are really "being oppressed" by the West (albeit this absolutely wasn't true 100 years ago for India/China).
Lindsay Ellis on YouTube has a pretty good video on this. I think it conveys how cultural appropriation (which is technically a neutral term) can become a problematic act.