Why don't you say anything when the exchange is pulling the strings?

It turns out that contracts can really make 3 million like pulling fur. When will it be my turn for a cracked contract?
On one hand, I agree that bg should not allow withdrawals, on the other hand, I support that this is the money they earned. Not allowing withdrawals is just maintaining the market makers, right? If market makers lose money, why should the exchange maintain it? This indicates that there is a high probability that competitors are using unlimited margin as market makers, and the losses are all their own money. Money is truly more important than reputation...