No because we all live in the same universe
I would say it is plural.
If I understand your question correctly, the voice in a text is the dialogue, tone, narrator, or the characters. It can be the mood, tone, and the point of view of the characters, author, and the narrator.
Answer:
This shows that the writer has a healthy self-confidence and he is also capable of holding his ground. Such writers feel bad if their presence is not acknowledged by others.
