If Hillary committed a crime worthy of being imprisoned then yes, she should go to jail.
What's wrong with that? The problem with Trump last year was that they never accused her of anything concrete, much less have any basis for it. Yet their campaign chant was "lock her up" and he told her point blank she would go to jail, even though she did not commit a crime (to god and our knowledge).
If Trump colluded with the Russians, which is what he is currently being investigated for, he should go to jail. End of story.