I will say that is very rude. However, depending on what the person is accustomed to, it may be more or less rude.
For example, my great-aunts would all talk at the same time, they weren’t being rude, they would talk and listen and just have a good time. Then they would ask my mom why she was being so quiet. She prefers to wait until people stop talking to take her turn. Well, my sister and I also tend to talk at the same time, interrupt and talk over each other, we can have a conversation for 3 hours in a very loud, broadcasting voice, we aren’t being rude, we aren’t angry, we are jus ...
[retrieve this message]