If one is willing to prioritize pedantry over human decency - then yes, one could make a case this isn't technically genocide.
But even if one is willing to concede that point - what's absolutely happening is ethnic cleansing. Not sure if that's an improvement.
Problem with that is it would leave to much unexploded ordinance and toxic residue. The mid-term goal is to have the area settled by Israelis ... it's prime, beach-front property. Why ruin real estate that's perfect for a retirement condo or inland settlement?
The better strategy would be to take control of the Philadelphi Route that borders Gaza and Egypt - then just dehydrate & starve everyone into submission. While this is happening, Israel could arrange subsidies to people who will 'voluntarily' leave for willing nations that would take them.
To be sure: In the short-term it will be horrific. Lots of images of skeleton children, wailing women, and occasional stories of cannibalism.
But whatever. What is anyone gonna do about it? Write a strongly-worded social media post? Vote for someone other than Biden? LOL.
By this time next year the majority of Palestinians will be dead, psychologically broken, or living in some other 3rd-world nation state.
Within 40 years there will be a documentary, produced by a well-meaning Jewish director, that will make Israelis feel slightly uncomfortable about what they did. Grandparents will assure their grand-kids that THEY weren't responsible for the slaughter. They had a Palestinian friend they used to play with as a child. Really. Such a shame. "Now come along kids; grab your yarmulkes and let's leave the condo and go have some delicious halva on the Gaza beach."