Why does Bob Cratchit not hate Scrooge in A Christmas Carol?

The
reader learns about Bob Cratchit in stave 1, "Marley's Ghost," of 's novella
:

The door of Scrooges counting-house
was open that he might keep his eye upon his clerk, who in a dismal little cell beyond, a sort
of tank, was copying letters. Scrooge had a very small fire, but the clerks fire was so very
much smaller that it looked like one coal. But he couldnt replenish it, for Scrooge kept the
coal-box in his own room; and so surely as the clerk came in with the shovel, the master
predicted that it would be necessary for them to part. Wherefore the clerk put on his white
comforter, and tried to warm himself at the candle; in which effort, not being a man of a strong
imagination, he failed.

Scrooge's nephew, Fred, found
Cratchit to be a cordial fellow who appreciates and applauds his sentiments about
Christmas:

His nephew left the room without an angry word,
notwithstanding. He stopped at the outer door to bestow the greetings of the season on the
clerk, who, cold as he was, was warmer than Scrooge; for he returned them cordially.

Cratchit is certainly cowed and bullied by Scrooge, but he doesn't
seem at all resentful of Scrooge. Cratchit is happy to have employment when so many others
don't, and it wouldn't serve any good purpose for himself or his family for Cratchit to
antagonize Scrooge to the point where he was in any danger of losing his job.

Throughout the novella, Cratchit is shown to be a friendly, optimistic, and fun-loving
man who is happy and grateful for what he has. He is shown to be a caring husband and father:
someone who always has a kind word for everyoneeven Scrooge.

When Scrooge
visited the Cratchit home with the Ghost of Christmas Present in stave 3, "The Second Of
Three Spirits," Cratchit offered a heartfelt toast to Scrooge, in the spirit of the
season:

Mr. Scrooge! said Bob; Ill give you Mr.
Scrooge, the Founder of the Feast!

The Founder of the Feast indeed! cried
Mrs. Cratchit, reddening. I wish I had him here. Id give him a piece of my mind to feast upon,
and I hope hed have a good appetite for it.

My dear, said Bob, the
children! Christmas Day.

It should be Christmas Day, I am sure, said she,
on which one drinks the health of such an odious, stingy, hard, unfeeling man as Mr. Scrooge.
You know he is, Robert! Nobody knows it better than you do, poor fellow!

My
dear, was Bobs mild answer, Christmas Day.

Even in the
depths of grief at the death of his son Tiny Tim in stave 4, "The Last Of The
Spirits," Cratchit was nevertheless pleasant and cheerful with every member of his family
and holds no animosity towards anyone.

Quite simply, it isn't in Bob
Cratchit's nature to hate anyone, even Ebenezer Scrooge.