no the bsc blockchain will not remain the best option is only a temporary solution until the eth fees return to be reasonable then all the projects and users will return to the eth blockchain
I don't think so, because BSC developers have never played around in developing their network systems so it would not be feasible if this BSC was considered a temporary solution, because BSC is a mainnet that will clearly compete with Ethereum even though at this time it cannot beat Ethereum.
If BSC wants to beat Ethereum, they need to be more de-centralized. As long as BSC is centralized network, it is of no threat to the ethereum. People prefer decentralized network over the centralized ones and that's the major reason both bitcoin and ethereum consists of 70% of the total market-cap.
False. DeFi/NFT traders don't care about or need maximum decentralization. You only need enough to remain open and without KYC, which isn't much.