Even if Hamas hadn't eliminated the anti-semitic language from their charter in 2007, that argument would require one to accept that preventatively mass murdering whole families and generations of children is a moral means of dealing with a political opponent.

Options? Israel (the people anyway) has always had the option of finally dropping the ethno-nationalism and apartheid of their foundational principles, and accepting that the Palestinians have a way more material right to Palestinian territory than an American or a European who Israel brought over on a birthright trip.