There is so much more to this character--possibly more than Charles Dickens himself could ever have imagined.
Scrooge has compelling reasons for hating Christmas, for rejecting his fiancée and his precious nephew, and for employing Tiny Tim's father, despite his obvious incompetence. He is a doting uncle, beloved brother, successful businessman, and passionate lover, but a dark secret puts both him and his loved ones at risk. Scrooge struggles to embrace his true self and live in defiance of the Victorian era's repressive moral standards. Soul-crushing losses and his own destructive choices shape his fate into a twisted path of sorrow, frustration, and uncertainty--but also happiness, fulfillment, and love.
Scrooge's own words sum it up best: "How delightfully queer life is."