What should I do if my unit leader is unreasonable?

We cannot say that the leader is unreasonable because your thinking and opinions are different from the leader. At this time, you must set your position correctly. The leader is a leader after all. Sometimes people have to learn to be led. Don't conflict with the leader, just follow the orders of your superiors. Even if the leader is wrong and the leader is stubborn and insists on his subordinates, you must resolutely implement it, because the leader will bear the responsibility if he makes a mistake at this time. However, you have the right to make suggestions, so remember not to be stubborn when making suggestions. This way you will be able to handle leadership mistakes flexibly.