Exactly, and only one fucking opinion matters. That of the people affected. Glad we cleared that up, cheers.
Are you under the impression that race and nationality are equivalent? If you're asking whether the term is considered dehumanizing, that's been answered for you, and if you're asking why, that's been answered as well. In English, racial and ethnic terms are generally used as adjectives, and we don't use adjectives as nouns when referring to groups of people.
It's far more acceptable than "blacks". It also avoids the issue of associating general search terms for groups of people with sexualized contexts as has unfortunately been done to Asian women and others.
Yes, it is.
Ebony, or GoneWildColor as the existing reddit community was already named.
I'm not the model. The source is provided.