Why didn't Constitutional Monarchy survive in France?

The people had no faith in any royal behaving any better than Louis. The whole pampered, over-fed and over-protected monarchy and its off-shoots and protectors sickened the populous. There was a desperate thirst for plainness and fierce antipathy towards any kind of privilege or fanciness.

The days of pomp and circumstance were over, and the people showed that this was no temporary thing. Although there was an attempt to restore a monarchy in 1814 under Louis XVIII, and with Charles X, this constitutional monarchy was short-lived.

After a three-day riot, Charles was exiled and the monarchy never returned in any form. The fact that there is still no appetite for a priveleged class shows how deep the rift had become.