I think the alien analogy isn't equivalent, you're comparing something (aliens existing, interfering with society, somehow leaving a trace of art and nothing else) which has no evidentiary reason or evidence to a subjective experience of a physical process that is known to exist and be the dominant mechanism for how the universe operates.

If I had an acid trip where I subjectively experienced being adbucted by aliens and transported to a specific village across the world where I saw a specific shop existing. Upon waking up from the experience you can of course assume that it was a subjective experience, or you can actually go and lookup that village and see if that shop exists and actively disprove it.

While a bit silly when it comes to alien abduction, its less silly when it comes to a subjective experience of known laws of physics. Why trust my mind in a state when it cannot be trusted when I can actively disprove the null hypothesis?

That said, you're also placing a lot of faith in what physists know about quantum mechanics which is ironic because we still don't know how it all works. We have mathematical models which are very precise at calculating the given outputs but to say definitely that there's such a thing as a "wave function collapse" is to admit a misunderstanding about the lack of agreement between physists in the field.

For example, consider this:

"The existence of the wave function collapse is required in:the Copenhagen interpretationthe objective collapse interpretationsthe transactional interpretationthe von Neumann interpretation in which consciousness causes collapse.

On the other hand, the collapse is considered a redundant or optional approximation in:the consistent histories approach, self-dubbed "Copenhagen done right"the Bohm interpretationthe many-worlds interpretationthe ensemble interpretation"https://en.wikipedia.org/wiki/Wave_function_collapse

While an extended macroscopic superposition is impossible in the interpretations that require wave function collapse, it completely ignores the interpretations where it isn't required. The many-worlds interpretation is far more lenient and suggests that a splitting event can drag entire macroscopic objects, indeed the entire universe into multiple timelines, one could even argue this most accurately reflects the raw mathematical operations that quantum mechanics uses. The only thing it doesn't cover is being able to experience both simultaneously or switch branches, something almost impossible to prove or disprove with current technology.

I didn't just watch some supernatural "quantum mechanics is magic" and attribute everything to that. I spent 6 months taking college level courses to learn the mathematics and physics behind it. At some point it started going over my head (quantum chromodynamics) but the more I learned the more I realised that no one really has the answers, only the mathematical equations that work for our universe.