What you are missing is if someone is stripped of their citizenship... they no longer have any constitutional rights... As in the govt can treat you like a dog and there is nothing legal that can be done about it. Note the petition only said if you signed the petition... not anything more. Might want to think real hard about what a less than honest person would do with that power?
Sorry, missed the whole taking their citizenship before they secede part....that's just stupid and won't happen.
It's been a long day.