Yeah, keep that up and you'll end up in court- and juvenile detention.
Making threats of physical harm is a crime in itself.
Your parents legally have the right to restrict all of your life, and legally own everything you think you own, even if you went out and earned the money with which to buy it. EVERYTHING, until you are 18, at which time they are no longer obligated to feed, clothe, house, educate you, or take you to the doctor.
They legally own your phone, your xbox, and your designer underwear.
They can take any and all of it, and make you stay in the house.
So, big talk isn't going to get you anywhere.