‘scholar’:
Your words not mine as an admission that there can be no certainty about 586 or 587 BCE.
You can’t really be this stupid. If someone ignores the evidence that the earth is actually an oblate spheroid, then they might think the earth is flat. But acknowledging that some people think the earth is flat isn’t an ‘admission’ that the shape of the earth can’t be known.
(In this analogy 587 BCE is the oblate spheroid supported by all the evidence, 586 BCE is a slightly incorrect alternative spheroid that doesn’t quite take in to account some evidence, and 607 BCE is the flat earth nonsense propounded by nutters who ignore all the inconvenient evidence.)
The correct year is 587 BCE.