You are misinformed. The Copts I know prefer Mubarek and fear the rise of the MB. What you are saying is the mirror opposite of reality.
I've known these people for years. They are in touch with their families on almost a daily basis. I see them every Sunday. I am not misinformed. Perhaps the Copts you know are secular and part of or related to people who are part of the Mubarak regime, or perhaps they just have a different opinion.