"Try to call you in"? I assume you meant what would happen if they called the police to report you as a runaway. Obviously, what might happen depends on all of the relevant facts and circumstances -- primarily whether anyone knows where you are. I assume what you REALLY want to know is whether, if you are located, the police would force you to return home. No one here can predict that, but the closer you are to the age of 18, the less likely that is in the abstract.
Again, it depends on the facts and circumstances. In the abstract, we have no reason to believe the police wouldn't treat the situation as a kidnapping.
You have the same rights as everyone else. I'll note that your description of your home as "quite abusive" isn't terribly meaningful without any explanation of what is actually happening. I hope you understand that, if you're being physically abused, you can call a child abuse hotline and/or the police.

