You're conflating Israel and Judaism. Same questions to you, why does Hamas exist idealogically and practically? Look in to those and you may find your answer. If you don't think Hamas exists as a response to decade of oppression but instead as some sort of innate Islamic radicalism then I'm afraid you're dancing with islamophobia
Religious fundamentalism doesn't grow in a vacuum. Al Qaeda, IS etc all grew hugely after being attacked/having an oppressed people. Ridiculous to write off 50 years of oppressions and apartheid being the cause of fanaticism because religion also exists.
You're conflating Israel and Judaism. Same questions to you, why does Hamas exist idealogically and practically? Look in to those and you may find your answer. If you don't think Hamas exists as a response to decade of oppression but instead as some sort of innate Islamic radicalism then I'm afraid you're dancing with islamophobia