Then the question should be; are we holding Russia, Israel and Ukraine to the same standards at Hamas?
Even that is a weird question because Hamas is not a country. It's a terrorist organisation.
I don't get the point you're trying to make here. I feel like you just want to hate on Ukraine. You are arguing that cluster bombs are illegal, which they are in most part of the world but not in Ukraine, and then crying about Ukraine using it, while blantly ignoring the human rights violations and war crimes committed. Things that are actually illegal internationally.
Let me guess. You're an American?
In Europe we have rules, regulations and consumer protections because our respective countries and the collective union actually give a shit about the people that live here.