I mean maybe the way Israel was set up was not correct but it's been a long time ago and it's time to let go. This is revisionist, just like Putin arguing how he wants the soviet union back or China vs. Taiwan. Israel is a fact for a long time now, there is no good way to change this now so maybe look forward and try for peaceful coexistance.
And yes the settlement policies and other things are bad, I'm not saying that everything Israel is doing is 100% good. But it's on an entirely different level and the ends don't always justify the means. If you try to fight this by being a babarian horde using human shield tactics and by parading dead girls with their tits out through the streets of Gaza then don't expect my support.