I’m guessing you’re gonna say that there is no genocide if not all or most of the people are killed, because then their people have survived. But, genocide also incorporates cultural genocide. Today the day definitions are one and the same. Destroying someone’s culture and history also qualities, like during slavery.
The methods employed in genocide includes the methods of colonialism, persecution, subversion and the destructions of farms, Mosques, churches, hospitals, libraries, monuments, etc. Anything to persecute, harass and destroy someone.
Take for instance “the gypsies”. A people in diaspora from a nation state that doesn’t exist, roaming Europe forever, with no land to call their own.
That’s the fate the Israeli state wants for Palestine. It is still technically genocide.