Cory asks: "Why should a Bitcoiner care whether DEXes exist? What are the use cases?"

Well, if we don't have DEXes, government can just shutdown the party by closing down CEXes. As always, decentralization is the opposite of having single points of failure. Single points of failure make the system fragile. Decentralized designs like bisq make the system robust.

The use cases are plenty: private transactions (which have many reasons to be useful), low fees (yes, you can achieve fees lower than many exchanges), trust-less trades that don't rely on an organization, the social pleasure of dealing with a peer on equal conditions instead of a massive corporation like Coinbase.

And DEXes work for people even if they don't use them: the fact that some unknown mass of bitcoiners is using DEXes helps protect the entire network from attacks, since any pressure on CEXes would incentivize shifting over to DEXes, further strengthening the network resilience.