You do not have to search for how Binance makes a profit from their market because I am sure Binance will not tell you. That is their secret and what we only need is how we can make a profit. If you lose in trading, just consider that it is a donation for Binance because you use their services and I am sure you can make more profit in the next trade. We want to see Binance still become the biggest crypto exchange, but do not forget that new exchanges can launch every month and every exchange out there will have its potential to become bigger like Binance.