that’s a deliberate geopolitical move to gain direct involvement of the US into the conflict by inciting retaliation from Iran. So they were expecting the repercussion.
It is a dick move but not as severe as attacking the head of the country. Just imagine during the WW2 the Allied assassinate the Japanese Emperor. It was a no go.
Man, If you hate someone, find a rational reasons for them to be hated. Not every wrongs can be linked to them. Use your head, not emotion.