If this was 1967 or 1973 I would say bring it on. But we have sold Egypt the most sophisticated surface-to-air and other weapons that will end up in the hands of the MB and kill thousands of Israelis. It would be devastating.
Israel would go nuclear.
Their arsenal stood at 200 warheads when the Oslo Accords were negotiated in 1998. They are believed to have been adding 25 to 35 warheads per year since then.
Do the math.