There is evidence that OG went into this case with the intention of investigating an abduction. I don't understand why it's unrealistic to accept that The Met may have got it wrong. There's no evidence that they're infallible.
There's no need for conspiracies and cover-ups either. I've seen lots of people saying it's ludicrous to suggest that the parents could be involved. I've never seen one person give a coherent reason why they hold that view. It seems to rest purely on opinion.
Those opinions, however, have dominated how the parents have been perceived and have been repeated so often they're seen as accepted facts, just as the parents having been cleared became an accepted fact.
It seems perfectly possible to me that those making the decisions about Operation Grange truly believed that the parents weren't involved. Whether they were right or not remains to be seen; or not, as the case may be.
I was really surprised to read that's what you think G. AFAIAC there is no singular reason why folk believe the McCanns were not involved - and the multitude of reasons why they don't believe they were involved have been an integral part of the discussions on here from day one imo.
It is the sum total of all those reasons which led me to believe that Madeleine was removed from 5A by a stranger.
As far as SY is concerned, it seems to me that they have been subjected to the same treatment by some sceptics that everyone else who publicly supports abduction is automatically subjected to. i.e. They have to be denigrated, criticised, belittled, mocked, insulted (take your pick) at all costs.
I agree that SY are not infallible. However the idea that highly professional detectives dedicated to bringing criminals to justice are so stupid, gullible and incompetent that they would remove the McCanns and their friends from their enquiries -if they had the slightest suspicion that any of them were involved - is as ludicrous as it gets IMO.
AIMHO