Absolutely hate my boyfriend's kids

So my boyfriend and i have been together for 1.5 years. He's the first healthy happy relationship I've ever had. The only one that hasn't been toxic and abusive in some way. Our personal relationship is great. But what ** is i hate his kids. When we were getting together i asked him if his kids Were good, well mannered, decent kids, not bad ** retarded imbeciles, and he said yes. I chose to trust that. Unfortunately when we moved in together and i became a stay at home mom of 6 all of a sudden (3 mine 3 his) i learned pretty quick that wasn't the case. I'll let you know child by child what I've had to go through these past months. The oldest let's call her L, it's a spoiled rotten princess. Seriously since she's the oldest my boyfriend has always babied her to the extreme. When we got together she was years old. Already in school. She couldn't even put her own blanket on. I admit out of the 3 of them she is my favorite because she actually has some capacity to learn right from wrong and basic common sense and human compassion. She's come a long way but still has a long way to go. She's very small for her age and had a rough start in life. I see her actually try to learn and grow although progress is much slower than i would like But at least it's something. She still does very little on her own at 7.5 like finding her remote instead of coming to me or my boyfriend to change her tv even thigh she knows perfectly well how to do it herself she is just too lazy or stupid to look for herself. Second is the only boy we have We will call him J. He's a ** mess. When we got together he was years old. ** and ** himself all the time. Not because he wasn't trained but because he was lazy and stupid as ** and wouldn't stop his stupid video game to go too the bathroom. Once i got him into vpk he started getting a little better. Stopped messing himself at least. He still is a moron and has absolutely zero common sense with the attention span of a nat. You have to break every ** thing down to him step by step even at 5 now. I mean everything. And he never listens. Gets in trouble over and over and over for the same stupid ** after being taught right from wrong and being punished every legal way possible. Nothing gets through his thick head. But I'll be damned if the kid isn't great in school. Seriously brilliant with his school work. Wtf? How does that make any ** sense. Lastly we have M. I hate her. She's the worst. She was 2 when we got together. She will be 4 in a couple months. She's best with going to the bathroom for her age. Seriously I expect an accident here or there at 3 years old. That happens. Other than that. This ** is the spawn of Satan. She is manipulative af. Gets this So sweet and cute little voice and asks for a hug when she knows exactly wtf she's doing. And she's a very pretty little girl so everyone melts and she eats it up. She has a speech issue which is fine we have her in therapy for it. But therapy will do absolutely nothing if she won't keep her ** ** out of her mouth. Seriously it's a compulsion. It's already affecting her teeth and jawline i know because i take her to the dentist. She's a complete moron says things all the time that make no ** sense but she truly believes they do. She can't form a single independent thought. Always getting into things she shouldn't Always breaking my stuff. When him and i first got together she hid my glasses knowing what she did but then is like she completely forgets. J and M are a nightmare together. They constantly lie, not just normal little kid lies either, the lie about everything and anything. Habe no regard towards other people. Have zero grasp of right and wrong. Although the dr says they are fine I'm 100% certain they have some form of retardation. They never ever ever eat dinner. Unless it's pizza or noodles even then sometimes it's pulling teeth but they will eat snacks and junk all day if we let them. They will No joke starve themselves. They can't answer a simple question, why? They can never answer that. No matter what they did. They never ever think before they do anything. And this is just the things that bothered tonight. There's so much more. I'm losing my mind. I don't want to lose the relationship. He's amazing and i love him and the way he treats me and my kids and how hard working compassionate and loving he is. And i admit i am stuck. If i leave him i have no income no place to live and no babysitter. So I'm ** if i leave anyways. I just wish the mother had full custody at this point. But she's a dead beat. Im getting to the point i can't even stand being around them. And that isn't fair to my bf those are his babies i wouldn't stay with someone who felt this way about my kids. Im just at a complete loss. I don't know what else to do. I have exhausted every resource and all the knowledge i have to help them become decent human beings with basic morals respect common sense and courtesy. My kids were raised from babies to learn those things. It comes natural to them. Not saying my own are perfect because none are. My oldest at almost 9 can be lazy and have an attitude problem at times but is the top of her 3rd grade class and has a beautiful soul. My middle child can be sassy and blunt at 4 years old. She's incredibly stubborn and spoiled by her father and his family. I do my best at home but have no control over there but she learns from mistakes and doesn't make them over and over. She doesn't constantly get in trouble. And she has common sense not to do stupid ** like put toys in the toilet. My youngest is just a baby at 1 year old and just learning things. I just pray she doesn't learn all my boyfriend's kids bad habits. Well that's it. That's my vent. It feels amazing to get that fully off my chest. Now if i could just learn the magic to help my step kids life would honestly be so much easier for me....