Open letter to Christians

[GrandizerII]

And sons of Josiah: the first-born Johanan, the second Jehoiakim, the third Zedekiah, the fourth Shallum.

Notice the word "first-born"? That's in the Young's Literal Translation, and all other English translations I've checked have the term "first-born" as well.

So this means the list is meant to be chronological in order by age.

No, that only means that Johanan is the "first-born."  And we know that "first-born" can either be first-born chronologically, or it can be a term referring to a title of preeminence (birth right), or both.  Either way, the term "first-born" does not have a necessary bearing on the rest of the list.

Ok, have it your way, but this argument is problematic, as this implies anything goes and your position is right no matter what. That's why parsimony is such a good principle.