Once Unichain is launched, Ethereum's fee income will decrease,
thereby reducing the amount of Ethereum burned, undermining the narrative of ETH as a "deflationary" currency.
Since the successful implementation of Proto-danksharding (EIP-4844) in April this year, the supply of ETH has gradually increased and the extent of deflation has also been reduced.
UNI's L2 will have its own validators, and it is entirely possible to become an independent L1 in the future, or to deploy UNI applications natively on other chains.
The only reason to stay deployed on ETH is security, but in the long run, security depends on income. This is also why ETH's current development is gradually deadlocked, because its vitality is being gradually sucked away by the second layer.
