So Myrah isn't as evil as Katherine but she have shades of grey in her, remain me of many girls out there I know as the story progress she will change as a person.
Paro/Myrah though have many similarity, Paro was a perfect female character with no shades of grey.
So if we can accept bitter angry young man who manhanding and treat heroine with disrespect. Would a character like Katherine pierce be accepted? (Minus the fact she's a vampire.)