If Arab countries didn't expel the Jews living there, would there be an Israel today?

If Arabs wouldn't have expelled the Jews living in the Arab world, would Israel have the manpower to defend itself against the Arab attacks?

Can the Arabs partly blame themselves for Israel's existence?
Update: Since the first two answers are way off, I will attempt to clarify.

Im talking about when the Arab world expelled Jews after Israel was created. And Im talking about how Israel was able to hold its own against the Arabs in 1967 and 1973.
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