There are many Jews and Israelis who do not support the Gaza massacre. From Gideon Levy at Haaretz via archive.is:

Al-Najjar Hospital in Rafah, southern Gaza, Sunday.Credit: Said Khatib/AFP
Journalist Ben Caspit epitomizes the Israeli center. He lives in Hod Hasharon and co-hosts a radio talk show with journalist Yinon Magal, who is on the extreme right. Caspit, supposedly, is not. He is a well-connected journalist, highly respected and successful.
Over the weekend, the executive director of the anti-occupation group Breaking the Silence wrote on X: “Don’t look away. A CNN correspondent entered the southern Gaza Strip and opened a ‘window on the hell’ of Gaza.”
This is what Caspit, a moderate and decent person in his own eyes, had to say in response: “Why should we look? They earned their hell honestly; I don’t have an ounce of sympathy.” Caspit, as usual, is the mouthpiece of Israel’s mainstream.
Eight thousand children are to blame for their own deaths; 20,000 people are responsible for being killed; 2 million people caused their own uprooting. This is how a rich person always talks about the poor, the successful person about the less fortunate, the healthy person about the disabled, the strong about the weak, the Ashkenazi about Mizrahi Jews: They are to blame for their victimhood.

In post-October 7 Israel, one can blame 10,000 children and babies for their own deaths without Israel having even a hint of responsibility and culpability. In post-October 7 Israel, one can feel blameless only because Hamas started committing atrocities first.
Well there is a depopulation agenda.