All the AGI must wipe out humanity theories are weird. Did we need to wipe out ants? Or anything to reign supreme on earth? Why would they wipe us out be the likely thing if they do reign supreme? Ha, I get it, we want to stay on top at all costs..
The argument is that human eradication is not a terminal value of the AGI. But in pursuit of its main goals it'll just steamroll everything which happens to wipe out humans as we did to Xerces Blue, Dodos, Tasmanian Tiger as side-effects of expanding modern civilization.