Although I disagree, I do get what you are saying and I appreciate you being here to have this exchange. This is an extraordinary situation and for that we have to admit that only those closest will ever know 100% what has happened. I'm also a single parent and was left to do the hard work when it first happened, so I can totally agree with you that situations like that aren't easy.
Going back to our discussion I would just like to raise one more point that has become apparent through my sister's unfortunate experience. What I noticed throughout our ordeal is that my niece's father was a friend of the family and when we first heard about the abuse all of us were caught in a state of disbelief. It just didn't make sense and denial was instinctive. We wasted valuable time wrestling with our emotions and in the end it cost us dearly. My sister reacted instantly while the rest of us hoped it wasn't true. Unfortunately, she turned to the authorities for justice and this has turned into a complete nightmare. Every department tasked with safeguarding my niece has lied, cheated and acted in their own interest. Even when we have proven them to be corrupt they have ignored us and carried on regardless. I'm appalled at how the system works, which is why I have sided with the mother in the post we initially spoke about. It should speak volumes that my advice to anyone in a similar situation would be to deal with it on their own and without the "help" of Police/Social workers(Unless they have irrefutable evidence, and even then I would think twice).

We are all shaped by our own experiences and I know this makes me bias in certain ways. I'm still glad we can have this type of discussion though, as it reminds me of my own biases and to question everything.