He made the remarks in response to a voter who asked about the ongoing conflict in the Israeli region.
Netanyahu has cast Gantz as a weak leftist who would endanger Israel's security by giving territorial concessions to the Palestinians. President Trump and his administration's pro-Netanyahu policies have enabled and emboldened the Israeli leader and his rightward lurch, and that definitely includes the West Bank vow.
Cavusoglu said on Twitter that the West Bank is Palestinian territory, adding: "the Israeli general elections can not and will not change this fact".
He said Israel can not expel the Palestinians.
Curiously, the more-than 36,000 Palestinians who work inside Israeli settlements in the West Bank - where they have direct contact with Israeli citizens - will not be affected by the closure.
He promised to seriously consider whatever the United States proposed for the region, and said he hoped the White House had not already given Netanyahu details of its long-awaited plan. That is not sovereignty.' I said, 'Joe, you call it what you will.
A spokesman for Palestinian leader Mahmoud Abbas told Reuters: "Any measures and any announcements will not change the facts".
Benjamin Netanyahu has been the Prime Minister of Israel for the past 10 years (having previously held the position from 1996 to 1999).
What is the political background?
In a widely criticised move to lock down extra right-wing seats, Mr Netanyahu brokered a deal making it easier for candidates from an extreme-right wing party that many view as racist to enter parliament.
Another figure, Moshe Feiglin, a libertarian and former member of Likud but now running the Zehut party, has focused on cannabis legalisation and attracted support among secular youth. "What I would say, and I know Prime Minister Netanyahu a long time, I agree with him a lot of the time, I sometimes disagree - he's not a racist".
Speaking at the Republican Jewish Coalition gathering in Las Vegas, Mr Trump said he made the snap decision during a discussion with his top Middle East peace advisers, including the USA ambassador to Israel, Mr David Friedman, and his own son-in-law, Mr Jared Kushner.
However, the Trump administration has carried out a series of actions that have inflamed Palestinian opinion and generally pleased Israel.
During recognition of Jerusalem as Israel's capital and the Israeli sovereignty in Syrian Golan Heights, the US took the lead, he said, adding the U.S.'s steps did not comply with the United Nations resolutions.