I fail to see any war; I only see reasoned and calm discussion.

ummm... how about "Lots of things may exist that nobody has..."...etc.

Nope. I'm certain there are things that exist that nobody has proven. Million of them. They have to exist before they can be proven. Proving them doesn't bring them into existence. If the moons of Jupiter didn't already exist, Galileo couldn't have proved they did. His proof didn't make the moons, the moons made his proof (so to speak).

Willie said, Neither can exist unless and until somebody proves otherwise.

Nope. They can exist without waiting for your puny proof. Not saying they do. That's a whole 'nother can o' worms™. But your proving or disproving them doesn't change their ontological status a foothair.