Lies are lies, lies are lies, lies are lies. Shall I say it some more? Lies are lies!
Weirdly enough, no matter how many times I say it, it doesn't provide any more or less evidence about whether or not you're lying. It doesn't even document that you're wrong, much less that you're doing so intentionally.
You listed three genocides. One killed 60%+ of those targeted. One killed 70%+. With one it's hard to know who was targeted, but 25% of everyone was killed, so it's obviously well over 25%.
Do you notice anything different about those genocides than the one you want to call a genocide, just based on numbers?
If you want to claim based on example that one thing belongs in a category, you need to give examples that show that it is typical not quantitatively very different.
Now, nobody doubts that Israel could kill that large a fraction of Gaza's population--even from starvation alone. If you're worried about it becoming genocide, then the concern is plausible.
But if you want to claim it is genocide, shouting tautologies into the air isn't going to help you. Lies are lies, you know.