What is the title of the 10th episode of Season 23 of “Law & Order: Special Victims Unit” and what is the main theme explored in the episode “Silent Night, Hateful Night”?

The title of the 10th episode of Season 23 of "Law & Order: Special Victims Unit" is "Silent Night, Hateful Night." The main theme explored in this episode is the investigation of hate crimes that occur on Christmas Eve.