You, sir, are a grade-A asshole
Since you say so, it must be so.
Well, if you are including yourself/your family in the list of possible false-positives, then I probably misjudged you -- my apologies. Still, you would agree that for every single person like you, many others will make such statements with an explicit assumption that no "good" (undeserving) person will ever be hit with a false positive.
As opposed to paralysis by analysis and do nothing about child sexual abuse because ZOMG I might be wrong.
They should be reporting/investigating the image hosters, not image possessors. Doesn't sound like that's what they are doing. In some cases, people have been flagged for hand-drawn or photoshopped CP images. As disturbing as it is, no actual children were involved then. If you include every such case, the number of false positives will no longer be negligible.
As opposed to lives that are not hypothetically ruined, but actually ruined in real life as the result of real child sexual abuse.
Talk about straw-man. By all means, let's do what we can to prevent child abuse, I am all for it. I'd just prefer to focus on, you know, actual people who abuse children and I am not convinced that monitoring and blocking image searches will help that goal.