The United Nations General Assembly, Amnesty International, the International Criminal Court, the International Court of Justice, The Committee to Protect Journalists, and Medicins Sans Frontieres are all worth listening to.
It's important to note all of those are political.
It's also important to note free democracies are a minority in the world.
The ICC and the ICJ didn't rule on this.
I don't think either the CPJ or the MSF have voiced a specific opinion on this question either. The CPJ specifically counts media people in the Islamic Jihad or Hamas as "journalists" which is extremely questionable. Many western countries would consider them to be "terrorists". They are hurting the cause they are meant to champion by pursuing a political agenda and they're being used.
All of that doesn't change the reality that a high casualty count in a war or that civilian population is suffering in said war does not constitute a genocide. It's a reality of war. A war that can end this second by Hamas surrendering and returning the hostages.
Israel's critics also always fail to provide some reasonable alternative course of actions that would lead to very different outcomes. I think it's fair to critique some specific decisions, like targeting, the use of heavy munitions etc. but some small changes there still all result in the same outcome, a prolonged war amidst civilians that is primarily the goal of Hamas. Hamas wants to hide amongst civilians and keep fighting until Israel is destroyed.
I'm not convinced that these attacks on these institutions aren't simply because they don't condone everything Israel does. In short: it looks like it's just "working the refs". Regardless, the opinions of these multinational organizations outweigh the opinions of any single nation, to say nothing of the opinions of you or me.
Speaking of, the rest of the post is opinions and unconvincing claims. They mirror the same rhetoric which has already been said by Israel, which the aforementioned organizations have already heard and carefully considered. Your opinions I respect, because I respect you as a person whose life is exactly equal in value to mine. Just like 1 Palestinian civilian life is exactly equal in value to 1 Israeli civilian life, and even more important to protect than 1 combatant life (from either side). After all, protecting civilians is the most important thing, even more important than achieving tactical or strategic objectives and goals.
Again, though, the opinions of the aforementioned organizations outweigh yours or mine or Israel's.