More than 100,000 people marched in Paris on Sunday to protest against rising antisemitism in the wake of Israel’s ongoing war against Hamas terrorists in Gaza.

France’s prime minister, Elisabeth Borne, representatives of several parties on the left, conservatives and centrists of President Macron’s party as well as far-right leader Marine Le Pen attended Sunday’s march in the French capital amid tight security. Monsieur Macron did not attend, but expressed his support for the protest and called on citizens to rise up against “the unbearable resurgence of unbridled antisemitism.”

However, the leader of the far-left France Unbowed party, Jean-Luc Melenchon, stayed away from the march, saying last week on X, formerly Twitter, that the march would be a meeting of “friends of unconditional support for the massacre” in Gaza.

Paris authorities deployed 3,000 police troops along the route of the protest called by the leaders of the Senate and parliament’s lower house, the National Assembly, amid an alarming increase in anti-Jewish acts in France since the start of Israel’s war against Hamas after its October 7 surprise attack on Israel.

The Paris march was starkly different from another protest march a day earlier across the channel in London, where a crowd estimated to equal the one in France marched to protest Israel and in support of the Hamas terrorists. Unlike the largely peaceful Paris march, dozens were arrested in London during altercations with police.

France has the largest Jewish population in Europe, but given its own World War II collaboration with the Nazis, antisemitic acts today open old scars.

Holding a French flag, Robert Fiel said marching against antisemitism is “more than a duty.”

“It’s a march against violence, against antisemitism, against all (political extremes) that are infiltrating the society, to show that the silent majority does exist,” the 67-year-old said.

Family members of some of the 40 French citizens killed in the initial Hamas attack, and of those missing or held hostage, also took part in the march, which Paris police said drew 105,000 participants.

A lawyer and a member of the “Freethem” committee working to obtain the release of people held by Hamas and other groups in Gaza, Patrick Klugman, said the large participation in the march is meaningful and symbolic in reassuring Jewish communities in France.

“I am very proud of my country because of this mobilization,” Mr. Klugman said. “I feel less alone than in the past weeks and days.”

Yonathan Arfi, the president of the Representative Council of Jewish Institutions in France known as CRIF said he was encouraged by Sunday’s show of support, but the question remains, he told French broadcaster BFM at the march, “what will be done (against antisemitism) tomorrow?”

An Israeli and French actor, Tomer Sisley, insisted the massive show of solidarity proves that the majority of French citizens are against violence and hate against any religious and ethnic group.

“We’re not Jews, we’re not Muslims, we’re not Christians,” Mr. Sisley said. “We are French and we are here to show that we are all together.”

As of Saturday, officials counted 1,247 antisemitic acts since October 7 in France, nearly three times as many as in the whole of 2022, according to the Interior Ministry.

In a letter addressed to the French on Sunday, Mr. Macron vowed that perpetrators will be prosecuted and punished.

“A France where our Jewish fellow citizens are afraid is not France,” Mr. Macron said in the letter, published in Le Parisien newspaper. He called on the country to remain “united behind its values … and work for peace and security for all in the Middle East.”

Mr. Macron said he will attend “in my heart and in spirit,” but not in person. “My role is to build unity of the country and to be firm on values,” Mr. Macron said Saturday on the sidelines of Armistice Day commemorations to mark the end of World War I.

French far-right leader Marine Le Pen attended Sunday’s march amid fierce criticism that her once-pariah National Rally party has failed to shake off its antisemitic heritage despite growing political legitimacy.

After arriving to the march with the president of the party, Jordan Bardella, Ms. Le Pen dismissed critics and said that she and the party members are “exactly where we need to be.” She called on other politicians “to take a break from fomenting political controversies” during the march.

France has largely banned pro-Palestinian demonstrations, although supporters have marched in several French cities in the past weeks, including thousands demanding a cease-fire in Gaza in an authorized protest in Paris last Sunday.