Sentence examples for how unfair from inspiring English sources

The phrase "how unfair" is correct and usable in written English.
It is often used as an exclamation to express strong feelings of injustice or displeasure about a situation. Here are two examples of how it can be used: Example 1: "How unfair it is that he gets all the credit for our team's success, when I was the one who did most of the work!" Example 2: "I can't believe my boss gave the promotion to someone else. How unfair!".