Hang on a second, just need to adjust to this massive goalpost move from "conjured out of thin air" and "never existed in the lore of the universe" to "show me the exact line of text" from specific books about specific times. Such a line doesn't exist, the Red Book of Westmarch (the fictional manuscript Tolkien pretended was the source of his Middle Earth novels) maintains that Hobbits know nothing of their origins and all the authors could find was myths and stories from the Rohirim.
However we know from other works that Hobbits are of the race of Men which means their ancestors awoke at Hildorien at the dawn of the First Age of the Sun. Anything between then and their making contact with other peoples during the Third Age is pure speculation and it will be interesting to see how exactly they handle it.
The actress they chose to play the role has dark skin. As dwarves were originally carved from rock by Aule and the sun is a magic piece of fruit whatever ideas you have about skin-tone in the real world probably doesn't apply the same, unless you're also upset about how Gimli didn't spend all his time complaining about sunburn and the symptoms of vitamin D deficiency.
In Tolkien's words;
"When I came to think of it, in my own imagination, beards were not found among Hobbits (as stated in text); nor among the Eldar (not stated). All
male Dwarves had them. The wizards had them, though Radagast (not stated) had only short, curling, light brown hair on his chin. Men normally had them when full-grown, hence Eomer, Theoden and all others named. But not Denethor, Boromir, Faramir, Aragorn, Isildur, or other Númenórean chieftains."
I don't know what you're talking about here.
This was already covered beautifully by @
ringpriest (go back to their post to see Tolkien's actual quotes.)
What do you consider to be the canonical character of Elrond at this point in his life, what are you basing it on?
Please explain how you can read my statement "That doesn't meant it will definitely be good but it will certainly be interesting" and think I'm describing it as "the best thing ever."