Argument from inertia

Argument from inertia or appeal to inertia (sometimes called "Stay the Course") is a logical fallacy derived from the proposition that a mistaken "status quo" be maintained for its own sake, usually because making a change would require admission of fault in the mistake or because correcting the mistake would require extraordinary effort and resources.
Its name derives from inertia, a concept in physics representing the resistance of any physical object to any change in its velocity.