Why wouldn't they attack convoys of aid? Israel did. What happened? Nothing happened.
The reflexive JCDing of Israel, even as its conduct has been objectively intolerable, has created enormous problems around the world. Basically Israel has shown the world that nothing matters except winning. At least as long as Trump is in office.
So again, this is another area where decisive action needs to be taken. Israel needs to be cut off from the international community until it can show a capacity to behave in accordance with respected international norms.