The Israeli gunboat Spear was not struck by a kamikaze UAV as first reported but instead by a missile. The missile in question was made in Iran and fired by Iranian Revolutionary Guard soldiers according to this article. The C-102 missile is an Iranian copy of a Pepople's Republic of China design called the Silkworm or Seersucker HY-2 cruise missile that China sold to Iran as late as 1989. Iraq also had these missles. They were used in the Iran-Iraq war to attack VLCC tankers. Even Wikipedia is saying the missles were C-102s
If it can be proved conclusively that Iraninan Revolutionary Guard soldiers did fire these missles, one that struck Spear and the other sinking that Egyptian merchant ship; well Israel will have its justification for ensuring the mad mullahs and their insane President meet the 12th Iman in the afterlife. With US and possible Egyptian support.
By their own actions Iran will have removed their proxies/cat-paws [Hamas and Hezbollah] from the chessboard.