Forced by the demands of Grey Worm and the Unsullied, the rest of Westeros throws Jon under a bus, exiling him to the Night's Watch while everyone else gets noble titles.
Tyrion: "Giving you to the Unsullied would start a war. Letting you walk free would start a war. So our new king has chosen to send you to the Night's Watch." (Convincing Argument)
Tyrion: "Giving you to the Unsullied would start a war. Letting you walk free would start a war. So our new king has chosen to send you to the Night's Watch." (Convincing Argument)