Not just Ormuz anymore. Iran's gonna hit the key to transport the Gate of Tears?

The blockade of the Ormuz Strait shortly may not be the only problem of the United States. For respective days the threat to another key area has become increasingly real - this time we are talking about the Strait of Bab el-Mandeb in the Red Sea. How real is it to block 1 of the most crucial trade routes in the world?