Are you claiming ignorance of the fact that the Hamas charter originally called for the liquidation of Israel? This is common knowledge. Granted, they have revised it recently to tone down the genocidal language, but I don't think anybody should be deceived about what their intentions are.
As the history of the slogan "from the river to the sea", please read on it at https://en.wikipedia.org/wiki/From_the_river_to_the_sea, it has little to do with Likud.