Straddling the fence, to mean that you are unable or unwilling to take a stand, one side or another; silent and passive, without convictions or passions.
Elie Wiesel wrote,
I swore never to be silent whenever and wherever human beings endure suffering and humiliation. We must always take sides. Neutrality helps the oppressor, never the victim. Silences encourages the tormentor, never the tormented.The time is coming when the decision to straddle will not be so easy, convenient or comfortable; eventually, you must make choices--hard decisions--and the consequences will be costly, critical and even catastrophic--the longer the wait, the more difficult the decision(s), .
Howard Zinn said, "It is hard to stand still on a moving train."