Worse? We have numbers for the respective body counts. They probably killed more Palestinian children in the last 8 months alone than Israeli victims in the entire history of terrorism against Israel.
Israel had decades of superior military power to culturally genocide re-educate Palestinians and create peace. Instead they chose fascism, oppression, and violence against their neighbors.
This is the ingrained propaganda that is clouding your understanding. Iran always complied (reasonably) with the NPT and seeks peaceful use of nuclear power. Just as Iraq didn’t have WMDs. These lies are framing their resistance and defense against imperialist aggression as aggression on their side.
Obviously Iran isn’t as nice and democratic, post racist and secular as the USA (/s) but they do have the right to defend themselves. Hezbollah is their tool. The US and Israel has theirs.