I see no easy or straightforward answer to these questions, and I'm thankful I'm not in a position where I would have to make such a decision.
I think you make a valid observation. Nevertheless, given
the following report from CNN by way of example ...
Israel’s police acknowledge their investigation may take months, and Elkayam-Levy said it remains unclear how or where any prosecutions would be handled, though she noted that some families of dual nationals could seek justice in countries other than Israel as well as pursue cases in international courts.
But officials provided a stark window into the evidence they have been gathering at a press briefing, which included a statement from a woman who witnessed the Nova festival attack from her hiding place on October 7.
“They bent someone over and I understood he was raping her, and then he was passing her on to someone else,” the woman, who was not identified, said of what she saw.
“She was alive, she stood on her feet and she was bleeding from her back. I saw that he was pulling her hair. She had long brown hair. I saw him chop off her breast and then he was throwing it toward the road, tossed it to someone else and they started playing with it.”
The witness added: “I remember seeing another person raping her, and while he was still inside her he shot her in the head.”
... the last thing I would do is stay silent. At the very least I would publicly insist that the allegations are extremely disturbing and deserve the most serious and thorough investigation.