Enterprises need to recruit a large number of people, but some enterprises are unwilling to recruit people. What is the reason?

It may be a transitional period. Especially this year's enterprises are really hard to overdo it. Used to be a dry enterprise. Since last year, the economy has been declining all the way. Some enterprises are busy to death, while others are idle to death. The origin of this reason is that the economic imbalance is different. Busy enterprises are afraid that they can't be irresponsible to workers because there are bad enterprises to keep up with the joneses, because now all workers have to pay labor insurance. (The boss is responsible for this expense) So some enterprises are too good to recruit people now. I don't know if it's right, it's just my opinion.