This will go over the head of most.

Who are you addressing?

Most understand and agree junk data shouldn't be any part of Bitcoin.

But that only makes sense if we can define both junk data AND non-junk data (I think/hope most core discussion is about what is non-junk since we don't know future needs ?).

OR just exclude all data OR allow verry limited data.. (as was the case so far ?).

This whole discussion feels like a redo of the block size war.

In the end it was 'simple': decentralization is the most important aspect for the base layer.

'We' should be able to formulate the same basic bottom line (understandable for most) for this discussion ?