If you want to use the history of Reagan's tenure after he was elected, then please consider using his history before he was elected. He hung in there, and changed the world.
The change you call for in leadership is not falling on deaf ears with me...but you don't affect that by walking away. You take yourself out of the equation. When those who care and work for change leave, those worthless leaders you despise will not cry, they will work further to consolidate their power and draw more people, people who don't care, into their realm of influence.