I get what you're saying, Crazy Person. And agree 100%
Just because something can't be "proven" using current science doesn't mean it doesn't exist.
Galileo "proved" the earth isn't the center of the universe, although other "scientists" (Church members) couldn't "prove" that using their Church-based methods. Yet, he was right.
It's the same with consciousness surviving death: it can't be "proven" using current scientific methods. But that doesn't mean it doesn't exist.
Current science or any science can't prove a negative, but some scientists are trying to do just that. Like Galileo's detractors, today's scientists assume their material methods can prove a non-material thing and never consider that there could be any other approach to learning the truth of things not materially provable.
If the immaterial could be proven by material means, then it wouldn't be immaterial.