The trouble is, there is not one iota of evidence, let alone forensic backup, to indicate abduction.
As to the background of the mccanns, we only 'know' what has been fed to the pres
That's true. But if there was a history of child abuse, mental problems, a difficult relationship between the parents that may have led to a custody issue, then something would have come out by now. This would be catnip to the press. CM may be feeding the press, but there are plenty media reports which do not come from him and do not present the case in a good light for the McCanns.
This type of information would also be vital for anyone investigating. Several investigators, here and in Portugal, have discussed the case with press and public, and not one of them has suggested any of the above problems.
Look at the recent Kular case. Very little has been leaked from official sources, yet the press have still managed to get their hands on all sorts of information regarding Mikaeel being in care, drug problems, etc. Neighbours have spoken to the press. These things come out.
If the McCanns were a problem family, we would know about it by now.