I don't see how joining Ethereum is a solution.
I have brought three active users (two very long-term) to the chain since I started. Not a huge success, but progress. I seek out bloggers to support with my votes. I downvote copy/paste spam when I find it. All of these kinds of activities are beneficialto he community as a whole and to me individually.
The DPoS model does give disproportionate power to whales. I have been disappointed in some of the actions taken by large stake holders with vendettas, and Curangel has even been a part of this problem. However, none of this is resolved by linking to another chain.
Interoperability always create more doors than not.
I don't know if this is technically possible (prob not currently), but by linking Hive to Ethereum, Hive won't need to worry about decentralization and security. Decentralization is a must for every blockchain to create trust. And DPOS chains do not have enough decentralization. See EOS as the biggest example.