There's no reason for anyone to have interest in segwit now that everyone can see how LN actually functions, which is why the second person to reply to the Satoshi mail list - James A. Donald - says virtually the same thing I do, that it's garbage. Bitcoin is already designed to turn into a permissioned ledger because tokens are non-fungible and transaction validators are designed to centralize, and Lightning Network is even more of a centralized, permissioned ledger than Bitcoin is.
If the original Bitcoin whitepaper stated what modern day Bitcoin actually is - "I envision the system having a multi-sig of only 1-10 block producers at most at any given time - he would be LAUGHED OUT OF TOWN. That's basically the definition of Solidcoin for fucks sake. In the very near future, it's 100% inevitable you'll need to ask permission from a US govt or Chinese communist controlled AML/KYC regulated mining pool in order to do anything with Bitcoin. Physical metals do not have built-in, rent seeking middleman that you have to ask permission from to do anything while also attempting to extort you for fees at the same time to move coins you supposedly own.
Bitcoin post-regulation is an even worse version of Paypal. It's like Paypal but with higher fees and a permanent record of all transaction history for anyone in the world to view, so it abolishes the 5th amendment making it so you're tracked and audited in real-time, and any tiny mistake will have the book thrown at you like receiving an automated traffic light ticket. The only thing propping up this bullshit now is people pretending this regulation is not going to happen and that they'll somehow make Ponzi scheme profits off artificial scarcity, Keynesian, halving events.