Then call it just that: blockchain space.
Why web3?
I think because the 'web' part of web3 needs to be attached to this idea of blockchain and distributed ledger to give it a sense of fairness and legitimacy.
I'm not saying blockchain or distributed ledgers are bad, I know way too little about that to judge it accurately.
It's just that the name 'web3' irks me a lot. Maybe it has something to do with the 'web 2.0' that promised golden mountains, but eventually just F'd everybody in the A.
Just add another number to the name and all the sh1t is forgotten, it seems. Here's a blank screen for you all, please start painting the same pictures.