I'm very sorry for the delay. I was finishing a question for another customer.
Sometimes the police will look at something like this and think is more of a family feud than a crime and just do nothing. In that case, what I have always advised others in this circumstance is to go over the heads of the police and report the crime directly to the prosecutor. Do this in person rather than by phone. Make it clear they had no permission to break into yur home and that you want a protective order so that they leave your home and you alone, etc, and that you'd like them prosecuted.
As a defense attorney, I have seen many cases over the years that come through the system where the defendant was the daughter or the brother or sister, or the granchild of the complainant who broke into their home and then took property. So I know that burglaries similar to this do get filed in court
and the cases get prosecuted. However, I also know that the state doesn't take on every offense that gets reported to them. If they tell you that they think the case belongs in family court as part of whatever litigation may be going on there, they will tell you. If they decline to prosecute, there is nothing that you can say or do to change their mind, as it is their right to call their cases as they see them, and they cannot be ordered to take a case they don't want to. But if they feel that this is a burglary that should be prosecuted, the fact that the police haven't done a thing won't matter. The prosecutor can order the police to make an arrest.