A hypernationalist euphoria unleashed in Egypt by the toppling of Mr. Morsi has swept up even liberals and leftists who spent years struggling against the country’s previous military-backed governments.

An unpopular few among them have begun to raise alarms about what they are calling signs of “fascism”: the fervor in the streets, the glorification of the military as it tightens its grip and the enthusiastic cheers for the suppression of the Islamists. But the vast majority of liberals, leftists and intellectuals in Egypt have joined in the jubilation at the defeat of the Muslim Brotherhood, laying into any dissenters.

“We are moving from the bearded chauvinistic right to the clean-shaven chauvinistic right,” said Rabab el-Mahdi, a left-leaning scholar at the American University in Cairo…

In the turbulent period of military rule after Mr. Mubarak was ousted, many liberals and leftists stood shoulder to shoulder with Islamists to demand that the generals relinquish power to elected civilians. Now the liberals appear to have joined in a public amnesia about the abuses and scandals of that period — the forced virginity tests of female protesters; Coptic Christian demonstrators shot by soldiers or run over with armored vehicles; the videotaped stripping and kicking of a female demonstrator who became known as the Blue Bra Woman.