Ok 3 destroyers is nice - they don’t have 300 Tomahawks. They could....but they don’t. Why?
because those VLS also have to carry defensive anti-air missiles and the load out was typically 3 -5 Antiair (RIM 66 SM2s) vs 1 Antisurface if they were supporting a carrier and maybe as much as 2 AA - 2 AS if they were away from the carrier. They also carry some Anti-sub missiles in those tubes, but likely only a few if they knew they were going to be in the Gulf.
At most it would be 150 Tomahawks. Would still ruin anyones day that ticked em off.