The UN Convention definition is "...genocide means any of the following acts committed with intent to destroy, in whole or in part, a national, ethnical, racial or religious group, as such:
(a) Killing members of the group;
(b) Causing serious bodily or mental harm to members of the group;
(c) Deliberately inflicting on the group conditions of life calculated to bring about its physical destruction in whole or in part; "
At the moment we "only" have around 5,000 deaths from a population of 2 million. But the situation could change very quickly, for example if the lack of food or water started to cause deaths in the 10,000+ range.
For recent full-blown genocides you should consider Darfur, Sudan - 400,000 deaths and 2.5 million displaced, or Rwanda - 800,000 deaths, 10% of the population.
By contrast, ethnic cleansing isn't fully defined by the UN as it hasn't been officially classified as a crime🤔. But demanding that the entire population relocate into 50% of the land while you systematically destroy the other half does meet the definition from one report " “… a purposeful policy designed by one ethnic or religious group to remove by violent and terror-inspiring means the civilian population of another ethnic or religious group from certain geographic areas.”"
Don't get me wrong, I'm as unhappy about what is going on as anyone, and consider that the situation is probably already ethnic cleansing and could easily head towards real genocide. But in my view it isn't there yet.