Will hated Christmas, for the obvious reason: people knocked on his door, singing the song he hated more than any song in the world and expected him to give them money.
Will strongly disliked Christmas because it brought unwanted visitors to his door. These carolers, who sang a song he despised, would show up expecting him to donate money. This scenario only intensified his aversion to the holiday season.
His feelings highlight a broader theme in the story, where Will grapples with his need for solitude and the intrusion of social obligations. The expectation to participate in festive traditions creates tension for him, emphasizing his general disconnection from the joys that others find in Christmas.
