Voynich decoded completely

[Mark Knowles]

In my opinion, discussing which language Voynichese could be at the current stage makes no sense.

One might then say discussing which language Voynichese could NOT be at the current stage also makes no sense.
With your swallowtail merlon analysis you have tried to narrow down the geographical area covered by the Voynich. What would be wrong with trying to narrow down the linguistic area by for example comparing common source texts?
Now it is true that speculation of origin language may not take one very far at this time it is not clear which lines of research would take one far.

I fully agree with this, and I have been trying to argue for  this in the past, but people who think differently won't be convinced.

That is often a feature of people who think differently. I daresay they would say the same.

My default assumption would be that the language is Latin, but I am not going at this time to exercise any effort working on the basis of that starting hypothesis as I cannot at this time see a way from getting from there to the solution.