I think it's more complex than that. There are more than two camps.
No, I would not leave my child alone. I didn't then, I wouldn't now. So, yes, I think they were wrong, but my god they know that themselves now and have paid a price higher than anyone could ever imagine.
No, I don't think the police were wrong to focus their attention on the families at the time. That's what they do in every abduction/murder case, because it's statistically more likely to be a family member.
Yes, I think a lot of the UK press went down the "ineffective foreign police" wormhole. Twas ever thus. (See Meredith Kercher)
No, I don't think the McCanns are wrong to throw everything they have at finding the truth. Wouldn't we all?
Yes, I think at times they have been very badly advised. Their litigation is seen in some parts as an admission of their own involvement and an attempt to silence the truth and any opposition to them as a family.
Would I do the same if people were talking about me like that? Sure I would.
There are people on MN who think they are guilty. Should they be allowed those opinions? Absolutely.
Do I agree with them? Absolutely not.
There are people on MN who will never waiver in their belief the McCanns did nothing wrong. Should they speak (as it always seems) on behalf of the McCanns? No, they shouldn't. (It's very similar to the Meredith Kercher case, there were posters so heavily invested in Amanda Knox, both for and against, it became quite weird)
Has it, at times, turned into a class thing? Absolutely.