Josef was born and died on 1st of Tammuz. He spent 17 years with his brothers in Israel then 17 years with his father in Egypt. The walls of Jerusalem (wealth & brotherhood) sank on the 17th of Tammuz. (nothing to do with Josef???)
Moses was born and died on the 7th of Adar. Moses was called "tov" (good) in the Torah twice at his birth and tov = 17 (everybody knows this). Last week at mincha.. the first alya of Shabbat Nachamo we started Berechit (Deuteronomy) The recitation begins on the first day of the 12th or 11th month 7 days before the death of Moses. The word used is "hashtemesreh" which means 11th but sounds like 12th. That was 7 days before 9th of Av!
The haftarah "Nachmo Nachamo AMI..." ends "ish lo needar" (man will not go missing) implying that everyone will be present... and we are talking about Jerusalem!
If you are not able to understand the obvious link between Rabbi Nachman being brought to Jerusalem and the reconstruction of the Temple which is of a much lesser value than either Josef, Moses or Nachman than I suggest maybe you should cease worshiping idols or at least give credit to the one who dictated the Torah.