To allow such a thing is tantamount to admitting they were wrong in stopping it the first time. Ruat caelum! The heavens will fall first! Too much pride and moral superiority has flowed through their veins to ever allow them to concede they were wrong so long as they have the power to stop it.
To quote General Custer in the movie "Little Big Man":
"Your miserable life is not worth the reversal of a Custer decision."
Sadly, true. That’s exactly how they think.