They actually make a profit. It is true that the amount varies depending on the company, electricity, expenses, and the nature of the loans, but in the end the average block mining costs are less than the price of bitcoin,
At a price of 30,000 dollars, mining will be profitable, and the profit in mining will be much greater than in other areas of the business, unless the price of Bitcoin suddenly falls to 20,000 dollars.
How did you base your belief that it would be profitable? According to the above report, it will be equal to avg cost of mining, which varies greatly from one mining pool to another. Therefore, we cannot say that the price of 30,000 is profitable for everyone, and according to technical analysis, there are no major resistance levels after 31,900, so when it is broken This level we will reach ~38k-42k easily.