Even if it was only her staffers that transferred classified information to non-secure systems. Even if they removed the markings. Even if you believe she did not direct it nor knew nothing of it. (I know, stretching credulity past the breaking point) The fact that she went ahead and used that information in a non-secure environment disqualifies her for any senior position.
As Secretary of State she had "original classification authority." Meaning she was supposed to be able to (was even expected to) look at information and deem it classified. Only a select few (as in something like few dozen people) are granted original classification authority. Everyone else has "derivative classification authority." That is, they mark and handle things as classified based on classified sources or from classification guides.
The President grants original classification authority. The SecState has it. It is expected, no, required that people with original classification authority have the good judgement to look at information and determine "we should protect this as X" where X is confidential, secret, top secret, compartmented... By working with obviously classified information in a non-secure environment not just once, but literally hundreds of times Hillary Clinton has demonstrated either she lacks anything remotely like the good judgement required and/or she has a negligent disregard for proper handling of classified information and the harm such actions can cause the nation.
She should never be considered for a position of trust. At the very least she should be in prison for 20 to life. Standing her up against a wall in front of a firing squad shouldn't be out of the question either.
I have little confidence in Loretta Lynch. I'm thinking that if the FBI director recommends indictment, Obama will fire him for supposedly turning the investigation into a partisan witch hunt and appoint a black leftist as acting director (so that anyone objecting to that person can be dismissed as a racist)...and nothing would happen to Hillary.
Bill Clinton is now claiming the email controversy will help Hillary because when people read her emails they will discover what a wonderful human being she is.