I'm so upset. I don't know how much longer I can take!

So my boyfriend  is the oldest out of 4 children. He is 30, has side jobs and hopefully gets a full time job soon. His sister 28, is an ex heroin/meth addict and still alcoholic that has only ever had one job, Taco Bell, and has under gone CPS for 9 months until they dropped her for not thinking anything else could be helped. She sleeps in the living room on the couch and her 1 year old baby sleeps in a play pin. That's the closest the baby has ever had to a bed. She gets money from the government for her being a single parent and gets food stamps. Does nothing all day and night but watch tv and eat food. The second daughter who is 24 , also an ex (maybe still ) heroin and meth addict. is 6 months pregnant with a 54 year old drug dealer. She has never had a job and helped a cleaning lady in the past but comes in and out of the house as she pleases. She still smokes cigarettes while pregnant. Than his youngest sister 21, who was originally the smart one who has ever done drugs choses to be stupid too. She got pregnant right when she turned 21 last year because she said, "I don't want to be old when I have kids so I have to start now. Besides my mom can help with the baby." And lives with her husband who has two part time jobs while she has none. And lives at home with her mom and her husband and baby. The mom use to be a teacher but left her job in Hawaii to come to California to be closer to her daughters . She only works part time at Ross and hasn't tried to get a better job in 5 years! The whole family could be on a reality trash show because they are all always fighting and I chose to stay in my room and they say I'm mean for not coming out! Why would I?! They are lazy and selfish people who Like to live off the government and not get jobs! They run up the electricity bills and expect my boyfriend to pay for their half of the rent because My boyfriend and I have a job and they don't. I feel like I want to cry after his mom left all the lights on in the house and didn't turn them off after my boyf end asked her too and instead she told him if he could do it. I love my boyfriend and I want to have kids with him but I'm afraid because his family is garbage. Need advice. Please nothing mean.