Scholars, ‘legal experts,’ wonks and nitwits can pontificate and opine about the Constitution and ‘precedent’ all they want. Whether ‘long-established’ or not, NOTHING is permanent when the Constitution itself allows a USSC court to reverse itself. If they want it (Roe) to be irreversible, then they can go try for an amendment to the US Constitution. Good luck [See Equal Rights Amendment].
It has happened before and will happen again. The abortionists think because one court ceded to murderous doctrine that all eternity is bound by it as if the abortionist came down off the mountain with is scribed in stone tablets.
As far as “long term precedent”, there was a time in this country when slavery was a long term precedent.