Realistically speaking, almost the totality of the NFTs market is concentrated on the Ethereum blockchain.
Nope, this is old news. Opensea itself allows minting on Layer-2's like Polygon which btw has ridiculously low fees compared to ETH and BSC.
Do you believe that one day people are going to move on BSC to sell their NFTs?....if not, why, what does make people choose Ethereum?
I don't think moving to another blockchain is the best solution; that would just divide the users and the volume.
Instead, we need a bridge that would allow transfers of NFT from L1 (ETH) to L2 (Polygon, Avalance). Although I'm not sure if this is entirely possible.
One thing is for sure, if that happens, the entire NFT space would explode as more users would actually be able to mint, sell and buy NFTs.
what does make people choose Ethereum?
Ego? The ability to brag that they've spent thousands of gas fees in bidding on their chosen space-monkey-smoking-weed NFT.
Also, most airdrops nowadays happen on Ethereum. Maybe that has something to do with it as well.