You don't know what you're talking about. A white person who puts on a Halloween custume to look like someone from another culture or country isn't a "glorification" of anything.
Do your neighborhood a favor by NOT handing out candy this year. You may see something that would offend you.
It's colonialist, you don't know what you're talking about because, again, I'm pretty sure you're white and thus may not be able to see past your own privileged status in society. the idea that any culture's style of dress, especially that which is not just something interchangeable, like a "Western" suit and tie, is just something you can wear is the very attitude that is marginalizing in its outcome, because it makes those cultures that stand out feel like they just have accept being objectified.
That's some double-standard crock you just cooked up! Now you're just trying to imply that only a white person can be racist or appropriate another's culture.
Never said that, it's merely more common because of colonialist spread and how whites permeate and create a social bias towards them with the idea that they're civilized, the white savior attitude in part.
What they're doing is attempting to appease the black militants that riot and loot and destroy their neighborhoods when they're offended. However, a black little mermaid, or a black Santa Claus, (or even a black president of the United States) will make them happy. Even if black people had their own TV channels where the star of every show is black (BET, or BOUNCE), and they had their own news channels (BNT), and they're own magazines such as Ebony, they still wouldn't be happy. They'd still riot and loot and burn down their neighborhoods because someone offended them. They just have too big a sense of entitlement.
No, it doesn't, not when the idea is that they won because they're black, not because of their own policies apart from their race. You're forgetting the basic problem that's the inverse of color blindness in racial discussions, which creates a different set of issues from the tokenization of black people like your accusations.
A black Little Mermaid is something I'm not sure how it's going to work, but visibility is key here. I'm not going to act like I know better just because I'm white, that's the height of arrogance.
And there's your systemic racism, the idea that black people are entitled or will always loot and rob because that's just "how they are", rather than it being an unfortunate response to a culture that continues to marginalize them even when there is the appearance of "equality". Segregation ring a bell? Othering of black people is part of the issue and them getting a specialty TV channel or a magazine doesn't mean there isn't still internalized racism from black people towards themselves in the expectations of conforming to what white culture thinks is "black"