Struggling with Judgmental Family Members and Embarrassment

I love my little cousins but they’re so brutally honest to the point where it’s rude. Information that doesn’t need to be said aloud is blasted from them and it gives me whiplash because my aunts and uncles say “well, they’re just being honest” when a lot of the time they’re just judging people hardcore. I know it’s because that’s what they hear from their parents so I can’t really blame them but sometimes they’ll say something about my house being so small that it’ll make me feel so self conscious about my house and the fact that yes, my house is small. It’s basically a box. It’s smaller than most apartments and all their parents have money so they all live comfortably in an average sized and modern/updated home. They don’t understand the struggle I live with. They don’t understand that them commenting on how we have no food in our pantry is very hard on me. It’s embarrassing. My dog is going through a rough patch due to separation anxiety so she’s been having accidents. Luckily we have tile so it’s been easy clean up but when they come over one of my little cousins has made it a habit to yell out “EW IT SMELLS LIKE POOP IN HERE” no matter how long it’s been since my dog has had an accident. I’ve stood outside for an hour to get my sense of smell back and walked in before they come to my house before just to see if anything smelled. Nothing. I didn’t smell anything. I smelled our wax melts that smell good and nothing else. I don’t understand. It makes me paranoid that my aunts and uncles are talking about me and my family behind our backs because of our living situation. They’re very judgmental and always are talking about other people so why wouldn’t they also talk about us? It makes me feel helpless. I do get mad when my cousins say stuff like that because I don’t do well with embarrassment but also because it triggers my anxiety. If me or my siblings said something like that growing up we would have been chewed out by my dad or spanked. I’m not suggesting that my cousins should get spanked or chewed out but their parents could be a little more mindful about how they speak of other people around them and have a conversation about how judging people isn’t a good thing to do, especially if they’re saying things that people can’t change quickly. I’ve always had a hard time feeling comfortable around my family and this isn’t helping. They’re all still young (9-13) but should know better than to say things like that out loud. There are plenty of things that make my heart ache with the way they were raised to think and act but I can’t do anything about it. It just sucks to see the little babies I’ve held in my arms are grown and saying things so horrible.