BSC is a copy-paste of the Ethereum blockchain and yes it is a big competitor of it. BNB is required to use the Binance smart chain which is why there is a demand for BNB. Another competitor that has emerged recently in the market is the Solana blockchain. A lot of meme coins are now part of the Solana ecosystem which is the reason why everyone is now interested in it. Another benefit of Solana is its cheap fee like Binance smart chain has which is why these two are good competitors of Ethereum now.
You are absolutely right, Binance Smart Chain (BSC) is replica of Ethereum, and it is very fascinating to see how block chains space is evolving with strong contenders like BSC and Solana are emerging as strong competitors of Ethereum. Ethereum's tooling and infrastructure has indeed contributed to its popularity, but its higher transaction fee still remains an issue despite numerous updates. While, BNB and Solana offer cheaper transaction fees making them attractive options for various projects and users. It will be interesting to observe the development and competition among these platforms within the broader block chain space.