You state yours is the default position. That is a claim. You need to justify that.
I already did, as have others, multiple times. If anybody claims something exists, then it's obviously up to them provide the reasoning, and, in this case, one of the multiple (and mutually exclusive) definitions of the term they are using.
It seems you are arguing from empiricism and physicalism and scientism. Those are beliefs since they cannot be justified by empirical or physical means.
There is no pretending. That is what you strongly look like you are doing.
This has also been explained multiple times. Your task is to give some sort of objective (something that isn't obviously subjective would be a start) reason to think that one of the many, many versions of "God" has an objective existence.
The most obvious way would be empirical evidence or a logical argument of some kind. However, if you have some other method that can achieve the result of removing subjectivity, then please do bring it forward. I don't exclude the non-physical on philosophical grounds, I just don't see a way to investigate claims made about it, so they can be distinguished from guessing or mistakes. All you need to do is provide such a method.
You never will, of course, because parroting the same inaccurate nonsense about everybody else's philosophical position is much easier than actually addressing the problem that you clearly can't provide a definition of "God" and a reason to take it seriously.