Don't care to read all 14 pages before I post, though I probably will and then edit.
I'm not sure what the argument is supposed to be.
Something like "We can't see your brain yet we know it exists, therefore God exists" ?
In any case how is the kid being gay relevant?
Needless to say this wasn't an actual conversation anybody had and just something a Christian wrote to make it looks as pro religion as possible.
This.