That's because they're not attacking each other.

Do you deny that if Palestinians would stop attacking, that the whole conflict there would go away?

Israel has never stolen land. Palestinians started attacking Jews, and so Palestinians deserved to lose land so that Israel can better defend itself. https://medium.com/non-violence/palestinians-when-you-start-wars-you-deserve-to-lose-like-lose-land-c83c1cd8cb71