AIO for being angry atmy mom for prioritizing what my aunt says over our dogs life?

I think it's important to know that there is a prequel to this story that I have already posted beforehand. Check my posts to read that incident.

Okay, so a few days ago, me (15F) and my mom (40F) we're on vacation and talking about how I should've listened to my aunt when she told me to keep my dog off leash. I told her that it wasn't right because both her AND my aunt know that our dog is untrained. She doesn't listen when she knows she needs to, she listens when she WANTS to. So if you tell her to come here, she's only gonna listen if she feels like it, not because she knows she has to.

She told me that it didn't matter and that I should listen to my aunt regardless. I told her that she was basically saying that it's okay to let our dog get heavily injured, or even KILLED just because your sister says to? And my mom said, "Yeah." I fucking kid you, not, she said yes.

My mom would rather have me allow my dog to get KILLED rather than ignore my aunties ego. I once again told her that our dog could die and she said, "Well, if she dies then the blame will be on your aunt." LIKE, WHAT???

I wanted to say so many things to my mom. I wanted to curse her out do bad right then and there. The anger didn't hit me immediately, but I feel like it's coming slowly.

And if our dog does die because my auntie doesn't want to listen to me when I tell her to keep my dog on leash, I'm not speaking to her, or my mom. At this point, I'm considering going no contact because that was some wild shit to say.