If God wishes to consume someone with fire, or strike them down with lightning, or open the ground to swallow them whole, or slay them with ice, or nuke them, or turn them to salt, or destroy them with wind, or wash them away in a flood/ drown them, or poison their water, or inflict a lethal disease on someone or their child, or summon and compel animals to kill them, or compel a human to commit suicide, or use a wall to crush someone, or create a drought to make people starve to death, or empower a human to slay hundreds of thousands in God's name, or send an Angel of death to kill a bunch of babies, or send any of the other angels to kill someone, or use any other destructive abilities to destroy humans...
It is not murder.
Or genocide.
Sure, YHWH was destroying humans, but...
1. We are YHWH's creation
2. YHWH is the most powerful being alive, which we do not compare to even in the slightest. Even demons and angels are like gods compared to us.
So how can one call it "murder" or "genocide", when YHWH uses destructive power on humanity?