I didn't say it is worse than it ever was. Just saying it is not the best it ever was either.
My perspective comes from the fact that I am an aid worker and human rights activist. This has nothing to do with online discourse. My perspective is also not only found in online echo chambers. It is common among my colleagues. I am not referring to Twitter dying. I don't care about that. And yes, activism is at least in my field of activism pretty damn ineffective. That doesn't mean we should stop trying.
There is another question on a micro level. How many people who are not about to kill you can you kill in self-defence to save how many people?
While in theory, every human life is as important and valued as another we do often in practice allow some movement morally.
The third question is immediacy. Are you allowed to kill someone in self-defence if you know they will kill you tomorrow? Is it just current action, and how far current stretches.
But while those are simplified questions on the philosophy of ethics in these situations they don't entirely apply to Israel and Palestine. That is because they ignore the power imbalance.