British author and “Harry Potter” creator J.K. Rowling. Photo: Reuters / Carlo Allegri.

Celebrated novelist J. K. Rowling has won plaudits from Jewish Twitter users after her latest online battle with supporters of Jeremy Corbyn — the far-left leader of the British Labour Party hit by yet another antisemitism scandal last week after he accused “Zionists” of having no appreciation of “English irony” despite “having lived in this country all their lives.”

The British author — who created the Harry Potter series and also writes crime fiction under the pseudonym “Robert Galbraith” — has long been a critic of Corbyn, whose three years at the helm of the Labour Party have mired the party in an unprecedented crisis with the Jewish community in the UK.

In a Twitter exchange with a supporter of Corbyn on Sunday, Rowling quoted extensively from the classic 1946 essay by the French leftist philosopher, Jean-Paul Sartre, titled, “Antisemite and Jew.”

“They (antisemites) delight in acting in bad faith, since they seek not to persuade by sound argument but to intimidate and disconcert,” read one quote from Sartre selected by Rowling.

The argument started after a pro-Corbyn Twitter user, Simon Maginn, aggressively challenged a post about Corbyn from a Jewish user. “Explain your patently synthetic outrage,” Maginn demanded.

Apparently reading the exchange, Rowling leapt in, telling Maginn, “How dare you tell a Jew that their outrage is ‘patently synthetic’? How dare you demand that they lay bare their pain and fear on demand, for your personal evaluation?”

Rowling continued: “What other minority would you speak to this way?”

How dare you tell a Jew that their outrage is 'patently synthetic'? How dare you demand that they lay bare their pain and fear on demand, for your personal evaluation? What other minority would you speak to this way?

— J.K. Rowling (@jk_rowling) August 26, 2018

And rather than bully from the grandeur of your immense twitter following, why not try to engage intellectually with someone? Anyone can sling mud and run. Let's talk about it rationally. How about it?

— simon maginn (@simonmaginn) August 26, 2018

How about you explain – publicly, to Twitter, to the world – why you've taken it upon yourself to attack a Jew, demanding that they explain themselves, when there are literally hundreds of accounts currently online explaining how British Jews currently feel?

— J.K. Rowling (@jk_rowling) August 26, 2018

You have 14.4M followers on here. You chose to use that platform to make a sickening personal accusation against a complete stranger who disagrees with you politically.
Do you think that's what your 14.4M followers expect of you?
Do you think you're a good role model to them?

— simon maginn (@simonmaginn) August 27, 2018

The weekend’s exchange followed an even blunter tweet from Rowling earlier this month attacking the rising antisemitism in the Labour Party.

If you’ve spent any time at all in left wing politics, you’ve met at least one ‘socialist’ who’d be pathetically easy for a fascist to flip. Here’s a Corbyn fan happily contemplating British Jews fleeing their own country out of fear of a Corbyn government. Just fucking saying. pic.twitter.com/4Dj6EdPVht

— J.K. Rowling (@jk_rowling) August 3, 2018