I wish this whole topic would end.
There is no issue. It is so simple.
Captivity ended in 537. Started 70 years prior in 607. 607 was not the destruction of Jerusalem. When the captivity started is when the gentile times started. Gentile times did not start at Zedekiah, but 20 years earlier at the first invasion. They ran from 607-1914.
Stop trying to battle the WTS on every issue as this 607 as the destruction was a Nelson Barbour creation. But the gentile times predated even him.