I agree, she should be prosecuted to the fullest extent of the law. It begs the question, Why are Democrats backing down here? Why is she resigning in disgrace? Do they have internal polling that shows this debacle was bad for them politically? Because the Democrats will do anything, including drinking menstrual blood (yep, look it up) if they think it will help them politically.
Why? So in two years people will have forgotten why it is tried again.