I need to let it out. And advise please

My boyfriends parents live with us because they have no where to stay. But it makes me mad because it's my house and his mother acts like It's not my house when it comes to her two grandkids coming over every weekend and spending the night. She never asks me if they can come. I don't mind them coming over every ones in a while and spending the weekend, buts it's every single weekend and it passes me off because they don't know how to behave. They are 9 and 10, I tell them to stop doing things like fighting or making to much noise because we live in the 3rd floor in an apartment building and we can get in trouble because it's only supposed to be 2 people living here and now there are 4... anyways she gets mad when I tell them to stop running or screaming or walking haed. She starts saying out loud she doesn't like people saying anything to her little kids, that her little kids can do anything they want. And it gets me mad because I stay quiet and I don't say anything. They come into my room and the little girl goes threw my stuff like nothing. And it pisses me off... Like It's my house I should have a say on what they can or can't touch. And then there is the husband... holy shit that man is soon annoying!!! I believe in God and I love to hear people talking about God expect him. He is always telling me to do things for his wife. Or to do his laundry and I tell him with respect no. And my boyfriend gets mad at me, because he has so much love for his father and I respect that but I can't stand the fact that his father is always getting involved into our fights and telling us stuff. Like I don't get involved into your fights with your fights because that's mad rude. And another thing every game I play or t.v show I want watch he is always talking about "that's bad for the mind,that's never going to happen, you should stop watching that." Every single day since he moved in and that was like 2 months ago. And every time I tell him that everything he watches which is as mad as what I watch is bad my boyfriend gets mad.. Am I wrong for wanting them out and wanting my own space? Like my mother in law dead ass ignores me when I tell them good morning or when they get home tell them hi sometimes. She stopped helping around. Her husband leaves all his clothes in the leaving room when he does something kitchen he leaves it a mess after I get done cleaning it. And I have to go back in there and clean, he leaves his boxers hanging in the bathroom and she leaves her under wear hanging in the shower too.. It sucks because I want to be able to tell the kids to not go into my room and touch my things or take things out of it. I want to be able to tell them to please not leave there underwear hanging in the bathroom or to please not come into the room at 5 in the morning every day asking if we are going to go out with them after my boyfriend has already told them that we are not going to go anywhere. The night before. I want them out, because they are rude and I just can't stand living with them anymore, I like them from a far. Anyways am I in the wrong for not wanting them here anymore ? I need help so I know to change my attitude towards them and the kids or to finally speak up about everything that bothers me. And I can't tell me boyfriend anything because he will run and tell his mother.