I, too, live in reality. Sadly it is a reality where some people, like you, refer to my beliefs as "fantasy" simply because you do not agree, or understand. Sad really. When one stops to really think about it, what do you really know, and what do you believe because of the "proof" you have be presented with? Take, for instance, any event that you did not personally witness. Did it happen? Well, one can show lots of "proof" that it did, one can also show "proof" that it did not, hence the abundance of "conspiracy theories".
I believe that this is an accurate depiction of the pyramids of giza:
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However, as I have never been there, I have little choice but to either believe the evidence, or disbelieve it. All the photos I have ever seen may well be part of a huge "fake news" conspiracy, but the evidence is quite substantial that that is untrue, so I believe. How is that any different from faith in a higher power, or god? I cannot prove, nor disprove the existence, but I choose to believe the evidence that there is. You choose to disbelieve the evidence. How does that equate to one being the truth, and one being a "fantasy"?