John McAfee used to talk about DEX's and privacy, especially Monero, but the problem with DEX's has been lack of liquidity. You mentioned that Litecoin could be in the cross hairs of regulators for adding mimble wimble with the result being a threat of de-listing. I've wondered why Monero hasn't been delisted from CEX's.

BTW, if you're interested in private Ethereum, that already exists in Dero.io.