Scaling 100% off-chain runs in stark contrast to the underlying principles of an open and permissionless system. Users won't stand for it and won't allow it to happen.
Hmmm, the only off-chain system currently proposed is permissionless. So, WTF are you talking about? Oh yes, that's right, you're talking about incredibly subtle anti-Bitcoin propaganda, like you always do.

Do you think that if you repeat "Lightning is Banking 2.0" a million times, it will magically become the truth?
LN is banking, no way around it ,
BTC onchain network has real BTC on it, on LN you are trading nothing but a representation value of BTC , as being off chain, BTC can not actually be on the LN Network.
IE:
Banking 
You stirred up a pet peeve of mine with that permissionless BS.
Here is why PoW is Permissioned, ( mined on a CPU or ASIC)
Facts
Permissions Required to generate a PoW Block if you Mine it
1. Permission from the ASICS seller , to buy their ASIC.
2. Permission from your local Govenment to allow the ASIC to be shipped to you.
3 Permission from the Electric Company to power your ASIC.
4. Permission from the Mining pool you have to join because group mining is your only shot
5. Permission from your ISP , so you have internet access to attempt to mine it.
6. Permission from the original programmer thru the Open Source License granted so you can run the software.
If you pay someone else to mine it , You need their permission and acceptance of your currency.
Permissions Required if you just buy it. (Same for PoW & PoS)
1. Permission from the Exchange
2. Permission from the Seller
Free Faucet (Same for PoW & PoS)
1. Permission from the one running the faucetHopefully we can put that falsehood permissioned verses permissionless to rest , because nothing peeves me more that hearing the same lie more than once.
There are No Permissionless systems in crypto. 