Binance CEO Changpeng Zhao has expressed his opinion on how Ethereum can become the real killer. According to CZ, Ethereum's success could be the reason for its eventual death in the same way that Myspace became too popular and unable to handle work.
Vitalik once said (and there is a video about it somewhere) that the killer of ETH is ETH. I believe he's right, ironically. ETH is hugely successful. But its success may well be its own killer.
Perhaps social media is the best example. Friendster, MySpace was extremely popular but could not handle all the work, could not keep up with user / demand growth. Already gone. Many other examples are in the early days of the Internet.
CZ continued to praise Ethereum for providing the community with smart contracts, opening the door to ICOs, DeFi and NFT. However, existing scaling solutions like Rollups are not user-friendly. Moreover, ETH2.0 is many years away and could eventually become the killer of Ethereum. CZ explained this as follows:
Ethereum created the smart contract market, brought in ICO, DeFi, NFT, etc. The demand is growing exponentially, the performance of ETH is not. ETH 2.0 is still many years away. Rollup is not user friendly. This is the killer of ETH.
To conclude, CZ reiterated that Binance Smart Chain is not the killer of Ethereum. Furthermore, the BSC is built on 'learning of Ethereum' and trying to solve the problems of high fees.
The BSC is not an ETH killer. It is built with lessons from ETH and tries to help solve one important problem, high fees.