https://electronicintifada.net/content/book-review-how-israe...
I suggest reading Hamas' 2017 charter in full for proper context.
[1]: https://www.idf.il/en/mini-sites/our-mission-our-values/
This also tracks with my travels to Palestine, friends who have travelled more recently, and various videos and article: the right-left in Israel is quite different to the right-left in other Western nations: namely, if you talk to a leftist Israeli, they will also hold strong view against Palestinians.
This is, critically, a pretty different political position from defending people accused of wartime rape. That doesn't make it a good position, but we shouldn't conflate the two.
As for why: Israelis don't appear to disapprove of a two-state solution any more or less than Palestinians[1]. Both are absolutely committed to the idea that their one-state solution will be supreme.
[1]: https://news.gallup.com/poll/695582/peace-distant-prospect-i...