There's no need for us to argue against the existence of God or other ludicrous hypotheticals, that's the whole point of Russell's Teapot.
As to the particulars of the imagined God, actually we do have some evidence for the parameters. The Princess Alice experiments in particular illustrate one desirable property, God (in the experiment, "Princess Alice") should provides behavioural oversight. An imaginary being can deliver effective oversight which would otherwise require advanced technology, but to do so the being must also believe in these arbitrary moral rules.
And that matches what we observe. People do buy Sithrak T-shirts, but, more or less without exception they don't actually worship Sithrak, whereas loads of people have worshipped various deities with locally reasonable seeming moral codes and do to this day.
As to the particulars of the imagined God, actually we do have some evidence for the parameters. The Princess Alice experiments in particular illustrate one desirable property, God (in the experiment, "Princess Alice") should provides behavioural oversight. An imaginary being can deliver effective oversight which would otherwise require advanced technology, but to do so the being must also believe in these arbitrary moral rules.
And that matches what we observe. People do buy Sithrak T-shirts, but, more or less without exception they don't actually worship Sithrak, whereas loads of people have worshipped various deities with locally reasonable seeming moral codes and do to this day.