What evidence does king give as to why he deserves to be in Birmingham?

In his "Letter from Birmingham Jail," Martin Luther King Jr. argues that he deserves to be in Birmingham because he is invited there by the local affiliate of the Southern Christian Leadership Conference, emphasizing the interconnectedness of communities in the fight against injustice. He also points out that he cannot sit idly by in Atlanta when there is injustice in Birmingham, asserting that "injustice anywhere is a threat to justice everywhere." Additionally, King highlights the moral responsibility to confront and challenge systemic racism and oppression, reinforcing the idea that he must be present to advocate for civil rights.