So, to reiterate:
Is there a plausible, logical theory of abduction?
Yes there is in my view, and here it is (bearing in mind it is all theoretical and I'm not claiming it actually happpened exactly as described):
The abductor (a predatory sex attacker with a penchant for young girls) selects his quarry based in part on the fact that he knows she is left unattended for several hours every night in an unlocked ground floor apartment, with parents and friends only checking every 20 - 30 minutes. He strikes some time between 9.45pm and 9.55pm when eight of the nine Tapas group are sat at their table eating their meal, entering via the unlocked patio door, enters the children's bedroom, opens the shutter and window to make sure that the coast is clear for him to leave the apartment via the front door carrying the child, which he does within 2 to 3 minutes of first having entered the apartment. It is possible that he has an accomplice who has also taken part in surveillance and in the get away, and this may offer further explanation for the opened shutter and window, as a means of look out and communication and between the two individuals, and for passing out the child.
According to some the above actions of the abductor are considered "inexplicable", perhaps we could have some further understanding of what that means?
In what ways is this theory both implausible and illogical?