Second layer solutions demand a main chain transaction, so it won't help.
Not fully true. On certain 2nd layer (such as sidechain), Bitcoin on-chain transaction only needed when you "convert" between BTC (on-chain) and BTC (2nd layer).
At this pace bitcoin is becoming a tool for the system it was created to destroy.
Only if people decide to use centralized system which rely/use on Bitcoin on-chain network.