would you call cps ?

i want to start this off by saying i would never even think about calling unless i was genuinely worried for the child’s well-being, i personally had experiences with cps case workers a couple times growing up, even long term and i actually wish all the time that they would’ve done more for me. anyways, my brother and his gf are 30 year old drug addicts, still living with our grandparents. his gf doesn’t work and she hasn’t since she had their daughter about 6 years ago. their daughter has autism and is kinda high functioning but still pretty severe. for the longest time his gf refused to acknowledge that their child had autism and while it was very obvious, refused to seek any kind of help for her. until about last year. now their daughter is almost 7 and still in diapers which my brother of his gf never changes. she will walk around for hours with a full diaper until she rips it off and smears it all over the furniture/house. their room is absolutely disgusting and stinks from my niece doing this and them not cleaning it up right. there’s dirty diapers all over, food crumbs, dirty clothes, trash, everything ALL over. the room is already pretty small as is but there is absolutely no walking room it looks like an episode of hoarders. they let my niece run around naked outside in just a diaper (unsupervised at that), smoke weed with her right next to them outside, do drugs (snort percs) in the room while she’s in there, lay in bed while shes outside doing who knows what for hours. my brother and his gf fight and argue all day long, screaming at each other. my niece misses school A LOT because my brothers or his gf don’t feel like getting up in the morning, they constantly cancel all their appointments and are alwayssss canceling on the people who come out to the house to work with my niece. my niece has hit my grandparents very hard, screamed in their faces, thrown stuff at them, broke their tv and their glass table yet my brothers gf just says “you can’t yell at her, she has autism”. my brother doesn’t care about anything, he just begs my grandparents for money to continue his drug habit, they don’t do anything to help my grandparents, my grandparents cry to me about how they’re so depressed and wish they would just die already so they don’t have to deal with them, they feel stuck because they don’t want to enable my brother, but also know he will be homeless if they make him leave. i don’t want to ruin there family i just want them to get help and do better for their daughter and it doesn’t look like they plan on doing that any time soon.

*the only reason i haven’t called yet is because there was a crazy neighbor we had next door who kept calling and they just kept immediately shutting the case because she was making crazy remarks that were definitely not true so they just disregarded EVERYTHING which sucked and made me feel like there’s no point in even calling