Which is what I'm saying, it's a centralized db. Whoever is using Hivemind is trusting the Hivemind node operator that the data is correct and identical to the layer 1 chain. Where's the fraud proof or validity proof to give me, an app user, that verification? What's stopping whoever is running the Hivemind node from manipulating data as they see fit before presenting to the user?

This is not layer 2. This is just a centralized db. My point is, layer 2 has a specific meaning in the blockchain space, and it is to do with a 2nd computational layer that has the same underlying security of layer 1. As with optimistic or zk Rollups on ethereum. Which is absolutely not the case here.