saline said: eh, she just seems like a bratty kid. Yukkuri are so self centred that even thinking "to hell with XYZ" is beyond them.
I believe the distinction is important. What you described are regular yukkuri, the whole extreme self-centeredness emphasized by the author is to highlight that, yes, this is a deibu, without a doubt.
Ouchshide~Ouchshide~Weimu wanchs to pway ouchshide! Weimu wanchs choo munch-munch Mr. flowers!Puts self before anything else. Thinks "to hell with the others"Bwing Weimu! Bwing Weimu Ouchshide eajy!