Why did Midea's recruitment turn around?

The factory is short of people, and the mobility is relatively large. The reason why factories recruit people every day is because employees are more mobile and factories are short of people. If you leave, you will be sure to stay. However, according to the labor law, employees have the right to take vacations. If you insist on leaving the factory, you can't stay. Now it's an act of forcing you, and you can refuse.