PARIS — Arab immigration to France and deep-seated anti-Semitism in that country mean French Jews have no future there, the head of the Jewish Agency for Israel said.

Natan Sharansky made this declaration on Monday in the French capital, where he was attending a Jewish Agency Board of Governors meeting, held in the city for the first time as a sign of solidarity with French Jews.

“We came here because there are historical processes here,” Sharansky said of France, which for the past two years has been Israel’s largest source of immigrants thanks to a record-setting 15,000 Jews who settled in Israel in that time.

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“There is no future for the Jews in France because of the Arabs, and because of a very anti-Israel position in society, where new anti-Semitism and ancient anti-Semitism converge,” Sharansky told JTA.

Since 2012, Islamists have killed eight Jews in two shooting attacks that came amid hundreds of nonlethal violent assaults. A French citizen with alleged ties to Islamist groups is standing trial in France for a third shooting in 2014 at the Jewish Museum of Belgium, in which four people died.

This violence is one of several factors behind the increase in Jewish immigration to Israel, or aliyah, from France, Sharansky said, along with French Jewry’s strong emotional attachment to Israel and France’s stagnant economy.

Yet aliyah from France has decreased considerably in the first five months of 2016 over the corresponding period last year, Sharansky conceded. According to the Israeli daily Makor Rishon, 1,065 newcomers arrived before June this year, compared to 1,865 in that period in 2015.

Sharansky attributed the decrease to “a slightly improved feeling of security” by French Jews. He also said aliyah has been decreasing because of “high housing prices in Israel and non-recognition in Israel of diplomas” of some French professionals. The Jewish Agency is in talks with the government to solve these issues, he added.

Notwithstanding, “Statistically, according to all our indications, massive aliyah will continue, it’s no coincidence we have in France 9,000 active files that have been opened for people seeking to make aliyah,” added Sharansky.

Since aliyah picked up in 2013, the Jewish Agency has reinforced its presence in France, where its team of dozens of professionals is “the largest delegation anywhere in the world,” Sharansky said. “The potential is enormous. We estimate it can reach more than 15,000 olim annually,” he said, using the Hebrew word for people who make aliyah. There are an estimated half-million Jews in France.

Read: Does a gritty ex-cop’s move to Israel symbolize the end for France’s Jews?

In surveys conducted in 2014 among 1,580 respondents by the CRIF umbrella group of French Jewish communities, nearly three-quarters of those who self-identified as observant Muslims agreed with the statement that Jews have too much influence on French economics, compared to 25 percent in the general population.

The assertion that Jews control the media received an approval rating of 23 percent in the general population group and 70 percent among practicing Muslims.

Among the general population, 32 percent of respondents agreed with the statement that “Jews use to their own benefit their status as victims of the Nazi genocide” compared to 56 percent of respondents from the Muslim category and among those who voted for the far-right National Front party in 2012. Among voters for the Front de Gauche far-left party, the assertion had a 51 percent approval rating.