People sticks to BSC not because they love the blockchain but because the projects there are many varieties from the pump and dump coins to some decent project but honestly I never see something serious developed in BSC beside the defi.
Most of the long term promising projects either still stick to ethereum or create their own mainnet, also if RSK become the next big thing it could potentially reduce the market share of coins below 3rd rank.
I think you know it very well that the only thing keeping people in BSC are those shitcoins for trying luck or in a nutshell gambling. but that's just my opinion alright, take it with grain of salt
BSC is extremely popular because of the low fees and blazing-fast transaction speeds. This makes Binance Smart Chain the ideal Ethereum alternative. Of course, the platform is utterly centralized. But most people don't care as long as they're able to fill their pockets with money in the least time possible. With useless coins like SHIBA and Safemoon gaining traction on BSC, anything can be expected. I'm surprised how fast BNB went all the way to the moon compared to other cryptocurrencies on the market. Binance Coin is now the third-largest cryptocurrency by market cap next to Ethereum. It may never replace ETH, but it could retain its position on the market as people use it more thoroughly in the mainstream world.
No matter what happens in the future, both BNB and ETH will be here to stay. They will continue to grow until they become a "force to reckon with". Since BSC is based on Ethereum, the world's second-largest cryptocurrency by market cap has nothing to lose. Just my opinion