[LargeTomato]

Good questions!

Egypt doesn't have the advanced anti missile cruisers. Egypt has a massive tank force.

There is already a multi national naval fleet in the Red Sea patrolling the waters. Mostly US but also UK and some others.

Edit

There's more :) Egypt can't counter the missiles better than the US can, but it could certainly get pulled into a larger conflict if it started deploying military assets outside it's borders. They can't really make their situation better but they can definitely make it worse.