Jeffro
You can pontificate all you like about 587 BCE for the Fall of Jerusalem but your charts simply prove that the biblical/regnal data combined with the selected secular data that you use does point most likely to 587 BCE. However, the biblical data alone cannot fix with certainty a date for the Fall of Jerusalem as it simply lists the reigns of the Judean kings so this alone partially constructs a scheme of Chronology for that period of Jewish history. The chronologist must then take into consideration other historical realities such as the Exile of 70 years which then fine tunes the chronology which shows a gap of 20 years. Now, the Chronology can be corrected which anchors the Fall of Jerusalem in 607 BCE then with the known biblical data for the respective Monarchs whose reigns can then be properly adjusted.
The problem with your opinion and charts comes down to Methodology and that has now been recognized by Chronologists such as Rodger Young who first introduced the term into scholarly journals in his advocacy of 587 BCE by means of the use of Decision Tables Analysis. But again Young fails to account for the Jewish Exile even though he has produced studies on the Jewish Sabbaths and Jubille.
In short, your Chronology fails on two counts: An inadequate Methodology and a failure to accommodate the Jewish Exile. WT scholars have adopted a very different Methodology in their schemes of Chronology beginning with Charles Russell who even in those earlier times considered the historical reality of the Exile of 70 years.
scholar JW