Just as a side note... the first time we saw the "Borg Baby" in Q-Who, I assumed that the baby we saw was not a captured and then assimilated baby, but rather was a "native" Borg infant.
And I doubt that Borg have sex, so I assumed that this baby was conceived in-vitro and "grown" in an incubator.
The only issue, really, is "is the baby a clone" or is it a new genetic combination of two (or more?) sets of DNA available?
See, that's not "cloning." But I suspect that it's very much "the way of the Borg."