Have the Arabs defeat Israel in 48, someone can correct me if I'm wrong, but this whole desire to drive Israelis into the sea became a by product of consecutive Arab defeats. This would avoid anger towards native Jewish populations and likely prevent the appeal of Islamism
No, the whole "drive the Jews into the sea" thing is present in Arab declarations in the '48 war as well. For example, the founder of the Muslim brotherhood is
quoted in an August 1948 NYTimes interview saying "If the Jewish state becomes a fact, and this is realized by the Arab peoples, they will drive the Jews who live in their midst into the sea." This isn't precisely what we're looking for, since it's a statement of what is expected to happen, not a call for it to happen, and it's actually describing Diaspora Jews in Arab countries, not Zionists in Israel.
There's also a direct statement about intending to throw the Jews into the sea. The Iraqi representative to the UN made a little speech to the Arab League in 1955 which included the following (
Khalil, M 1965, pg 223), referring to '48 (though the statement was made 7 years later).
"I asked them (Arab League members) how Palestine was lost. It had been lost for two basic reasons: one, because we deluded ourselves by underestimating the power of our opponent and by thinking that the Jews were not powerful. The highest official in the League said that with 300 soldiers or North African Volunteers we could throw the Jews into the sea. The war started and His Excellency then said that with 3,000 North African Volunteers we could throw them into the sea."
These are representative examples; apocryphally, it was a very common cry, though e.g. Nasser formally denied ever having said it.
I'm also like 90% sure that there are statements by Palestinian Arab leaders in the Mandatory period calling for throwing the Jews into the sea, but I can't find any primary resources.