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What's wrong with tailoring your pitch. I think you've fallen for the standard propaganda that there's some supreme crime in being anti-semitic. There's not. You can be racist, anti-semitic or homophobic, and you can still negotiate with the people you hate if you're getting a good deal. The very reality that Hamas does have a social and political wing indicates that they are capable of putting certain issues above hatred of Israel.
That is if they really do hate Israel, and it is not just a nation building ploy. Many people opine that Israel binds its nation (which has little in common socially or culturally) with equal parts hatred of Palestinians, though I assume they think there hatred is totally rational give the distorted narrative of their own history that they are taught. Even so, most polls show a majority of Israelis want a peace deal with Palestinians and are willing to give up land to do it.