How Does the Reliance on L2 Solutions Affect the Decentralization of the Base Layer?

Reliance on L2 solutions can be seen as a trade-off. While L2s improve the base layer's scalability and usability, they shift some of the activity and control to a smaller set of L2 operators (sequencers or validators).

If the L2 operators become centralized, the base layer's decentralization is weakened, as users are funneled through a few choke points. The base layer must remain highly decentralized and secure to ensure that users can always exit the L2 trustlessly.