I think it’s hilarious in a “so pathetic I have to laugh” way and points to the tribal polarized hostility patterns that come of monotheistic black & white religions, especially the common modern misled Christianity (exemplified by the outrage in this case), and misled Islam and misled Judaism and their extensions to politics and social issues, where so many people are stuck in futile “we are right, they are wrong” arguments that go nowhere except anger and violence and suffering.
By the way, if I can say so without hypocritically doing the same thing, I’d like to bring attention to the part where you asked about Zeus or Apollo. Note that in polytheistic approaches to spirituality, they would (hopefully obviously) NOT write “There is NO god but Apollo”, because there were many gods. When someone from somewhere else would visit and mention gods from their pantheons, they wouldn’t be outraged, they’d be like “oh, another god, that’s interesting.”
I’d say that anyone who says their god is all about love and acceptance and charity, but then also says their god is the only real god, and anyone who believes otherwise is doing something wrong and outrageous and forbidden and punishment-worthy, is following very confused teachings.