The use of the word genocide in this context is just pure propaganda. There are plenty of conflicts with significantly higher human toil where this word is not used.
This is what a professor of international law has to say about the case: https://www.ejiltalk.org/speaking-the-law-plausibly-the-inte...
And if over 30,000 dead Palestinians so far isn't enough for you, the intent is the central issue of genocide, though the Palestinian casualties will undoubtably rise.
30,000 dead is way too much for me. Not for the Hamas apparently? For Israel going after all 40,000 Hamas combatants, is probably legitimate, as long as Hamas keeps fighting. I would so much prefer that all of the Israelis that have been killed and all of the Palestinians that have been killed still be alive.