Haha, that was long.
Anyway, I still don't understand why this refers to their existence.
So I still see no reason for acausality type 4.
Technically, it doesn't matter whether I prove it or not.
Even if you treat it purely as "breaking cause and effect" this could still be causality manipulation.
So it's still not an existential situation.
I mean, if they had a statement like (they broke cause and effect, so now they are completely independent of cause and effect, they are in a different cause and effect relationship, etc.), I could understand what you guys saying.