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 Signatures are part of the bitcoin transaction and can not occur anywhere other than the base layer. It's a fundamental part of a bitcoin transaction. 

 
 You're saying lightning is impossible, but lightning exists

How would Bitcoin transactions ever stop another layer from functioning? Doesn't make sense 
 Lightning payment channels are opened/closed as on-chain transactions. While they’re open they work fine. I have two LN nodes and have operated one of them for 4-5 years. But the fact is that signatures are layer one for true btc transactions. 
 Oh, you do know what you're talking about then.

I'm saying these moves could be "opening channels" for some new corporate equivalent, so the single on-chain signature isn't in any one individual's hands (until the new system gets hacked someday)