The developer of Blocknet actually said i n a video that he has spoken to another dex called DYDX and he would really like to incorporate margin into a DEX. The future should be 100% decentralized open source margin trading.
I actually have some idea of how this could be done. But I encourage you to reach out and advocate to developers to check out projects like DYDX and Blocknet.
It is high time we actually look into decentralized exchanges, because if we really wants to be in the cryptocurrency system, and we want what cryptocurrency was fully developed for, I think that DEX exchange is what we need and not some of these DEX exchanges that has already made our privacy compromised.
When using a Centralize exchange for moving our funds, in one way or another, they still have our detail registered and can easily be tracked by the government, the reason why people have not started seeing the effect of this is because they are still waiting for the system to get so deep, and since we are yet to fully have 100% adoption, they still have to wait before manifesting their power over peoples transactions over centralize exchanges.