My parents are spying on me and I want to confront them about it?

I am a sixteen year old boy with an eighteen year old sister, a mom, and a step dad. Like every sixteen year old I love playing Xbox and my Xbox has netflix. My mom has kept me very sheltered and now on netflix I have started watching South Park. For the past few weeks my parents have been asking me a lot of weird questions about netflix and today I overheard them talking about me watching South Park and a few other things say that I will start swearing and become a pervert. I will be going away to college next year and moving out. I feel like even though I am almost legally an adult and surely old enough to make my own decisions they do not trust me. After finding this out I did a bit of digging and I found out they also monitor my cell phone internet activity and texts. This makes me feel very unsafe like my actions are being watch and makes conversation awkward because every time I see them I think of their spying. My immediate solution is to not go on my phones internet, text, or watch netflix but this is no solution. I want to confront them about their distrust of me. I would like some advise please. Thank you.