There is no reference to an uncle of Scrooge in the original story
Fred understands that his uncle is tormented and trues to to build a relationship with him
Fred is the son of Scrooge's sister. He is Scrooge's nephew and he refers to him as Uncle.
Simply to invite his old uncle to dine with him and his family
Fred is like his mother Fanny. She was a caring person and loved family, Freds attitude was to want to include "his old uncle" by Scrooge continually dismissed him. Fred loved him as his uncle but knew only scrooge was losing ot on many years of love
Fred is Ebenezer Scrooge's nephew in the novel "A Christmas Carol" by Charles Dickens. He is kind-hearted, cheerful, and embodies the Christmas spirit that his uncle lacks. Despite Scrooge's grumpiness and lack of holiday cheer, Fred extends an invitation to him every Christmas, hoping to mend their relationship.
Fred States "Here is a glass of mulled wine ready to our hand at the moment; and I say, 'Uncle Scrooge!' " "Well! Uncle Scrooge!" they cried. "A Merry Christmas and a Happy New Year to the old man, whatever he is!" said Scrooge's nephew. "He wouldn't take it from me, but may he have it, nevertheless. Uncle Scrooge!"
Scrooge's nephew's name was Fred. He was a kind and jovial character who always tried to bring cheer and goodwill to his uncle, despite Scrooge's grumpy demeanor.
Initially we see Scrooge as an oppressive employer who seeks to domineer Bob and treat him harshly. Then when seeing the visions of his own past and how Fezziwig treated him and his employees Scrooges attitude starts to change. And then in stave 5 we see Scrooge, the changed man soften toward Bob and raise his salary immediately plus seek to help Tiny Tim
Fred wants his Uncle Scrooge to come to his home and celebrate the holiday with the rest of the family.
He felt for his old uncle and as this was his only relative he wanted to wish him health at that time of year
Scrooge's nephew Fred (son of his sister Fan) believed that only Scrooge himself suffered from his ill whims. Scrooge was unable to dim Fred's enjoyment of the season or his goodwill towards his uncle.