As a writer should I use neopronouns in my writing?

My characters don't really have strong distinctive voices for now. So I was trying that instead of just abusing of the thesaurus over and over. My characters should speak with various pronouns depending on their personality and gender. The problem is that I have a character entire ideal being extremely against the norm. They would be the type to be so rebellious, they started rebelling against the first group. So I was thinking if NeoPronouns would fit for them? They wouldn't really care about being easy to read. But then again is it a good idea. It feels like a "Should I" question than a "Could I".