Since morality is borne from rational and the innate right to life.
Each judgement makes reference to rationale and hence the moral framework in which we co-exist.
There is no tangible rationale for a moral god.
The god concept enables slave mentality and diminishes the self.
God is all - including us
There can be no authority higher than the self.
By wilfully depopulating they diminish themselves.
If this planets populations were to be left alone. The natural balance would be reached by itself.
That said, the current balance is always correct. We have no way of knowing what that exact current balance is.