This is a PoE debate. As such, it is a given for one party to argue that because evil exists, God does not. That pre-supposes the assumption for the other side that God does exist. We stipulated that the God in question is the MGB God. Bruce had his opportunity to prove by weight of argument and evidence, that the MGB doesn't exist, without having to prove that no god exists. Just the MGB God.
This doesn't follow at all; no, it doesn't entail those who disagree must have contradictory positions on the existence of God.
I am a Christian, I and other philosophers hold that certain views of God are illogical, many have fully developed arguments that play into forming their theology; Thomas Jay Oord, for example.
I argue:
P1) God allows evil.
P2) Children are raped and tortured.
P3) The rape and torture of children is evil.
P4) If y is a moral end that must obtain, then means x is justified just in case x is necessary for y obtaining.
P5) If means x is evil and sufficient but not necessary for y obtaining, means x is not justified.
P6) There is no moral end that must obtain and could only obtain through the rape and torture of children.
P7) Genuine evil is unjustified evil. (def)
SC1) The rape and torture of children is a genuine evil. (P3-P7)
SC2) Genuine evil exists. (P2, SC1)
P8) Allowing unjustified evil is immoral.
SC3) If genuine evil exists, God is immoral. (P1, P7, P8)
C) God is immoral. (SC2, SC3)
I simply hold that there are consequences to thinking God is sovereign in that He allows all things that happen rather than simply being necessary for anything to happen at all. This view would hold that God is collaborative with creation rather than dictatorial or authoritarian. That is, God cannot single-handedly do anything in creation but influences it toward it's own good. The above is merely good motivation to take that view seriously.
Just a thought or two.