I just don't understand men who bang on about fathers rights, what rights? You have responsibilities regarding any children you have, including financial responsibility. The only person who has any claim of rights is the kid/s they have the right to be safe, loved, and not put in situations where they're alone with their abuser.
That has to be determined by a court.
I don't understand women that praise the courts when it is convenient to them and then feel betrayed when men use the courts.
The true is we only know one side of the story. If OP's ex has done what she said, he will have a hard time in court.
If that were not case, what would stop someone making false allegations to obtain what he/she wants.
I don't like my ex so tomorrow I will accuse her of heinous crimes and take my child away from her. In your view, she shouldn't be listened in court? Or the fact that I am a man changes your opinion. How do you protect the child if you don't investigate who is telling the true?
Family courts work on the balance of probabilities so you don't need hard proof. The judge will listen and determine what probably happened.