These outrageous claims are fitting with the panic then overreaction we're seeing on the israeli side, resulting in them shelling their own kibutzes, and now murdering tens of thousands of Palestinian civilians in cold blood, after announcing terrible things like they're not looking for accuracy, but damage, and that they're fighting "human animals". Not only that, but some stories like the last two in the previous paragraph have actually been documented to have been done by israelis during previous massacres like Der Yassin and Sabra and Shatila.
As far as the abuse done by israel on Palestinian women and even children
[1] https://jordantimes.com/opinion/ramzy-baroud/untold-story-ab...
[2] https://electronicintifada.net/blogs/tamara-nassar/israel-cr...
[3] https://www.cair.com/cair_in_the_news/israeli-guards-rape-pa...
I saw no reason not to believe the rape accusations of Hamas - many women came forward with this and it would absolutely fit with all the other things Hamas did on Oct. 7 - how they paraded around Shani Louk and then later killed her.
Unfortunately, rape by Israeli guards of Palestinian captives would also be believable from the reports you hear about treatments of captives.