Are you The Joker? What is this anarchy?
A pool that is named “Core” that lives on SCALE, with a root dataset named “Pool”.
I think you might be confusing directories for datasets, or the other way around.
This information can help:
zfs list -r -d 1 -t filesystem -o space Pool1
zfs list -r -d 1 -t filesystem -o space Pool2
For future reference, it’s usually better to allow the replication task, itself, to create the destination dataset, rather than you create it on the destination ahead of time.