According to Douglass, who is unable to experience the joy of the celebration?

According to Douglass, all enslaved people are unable to experience the joy of the celebration.

To add, Frederick Douglass was an African-American social reformer, abolitionist, orator, writer, and statesman. After escaping from slavery in Maryland, he became a national leader of the abolitionist movement in Massachusetts and New York, gaining note for his dazzling oratory and incisive antislavery writings.