I think I could find it in me to justify geocide of the Jem'Hadar.

(Since this is not a Star Trek board: The Jem'Hadar are a genetically engineered race, made by the Dominion. Their purpose is to be ruthless soldiers. They are engineered without emotions, or any care for human-like values, and so they inevitably have no sense of ethics. They are managed in two ways: first, the need for a drug-like protein that only the Dominion can synthesize; and second, a predisposition to recognize the Founders of the Dominion as their slavemasters.)

But any race, even a race with a proven tendency to be assholes, like the Cardassians, deserves a chance.

As for Palestinians, it's not even close. They should obviously be considered innocent civilians. If I were to make inferences about who was the more evil race based on the current war, I would be much more likely to pick Israelis because of their current kill count of civilians.

But we don't make such inferences. They're all humans. They're way more closely related than Bajorans vs Cardassians. They all evolved on the same planet, are the same species, with a very recent common ancestor. It's due to their upbringing, education, and circumstances that Hamas and IDF both wish to commit genocide, and it's due to external funding that IDF has been more successful at it.