The problem with relativism

Relativism has one central and major flaw. This flaw being that they cannot accuse people of doing something wrong. They cannot say that someone has done something wrong if their basic belief is that morality is based on a persons personal definition. I say that this flaw is central because based off of this you can discount other things. Because of this relativists cannot blame anyone for anything they did or said because based on that persons definition of morality it was okay to do or say what they did. Also, relativists cannot say that they were treated unfairly or that something was fair or unfair. They have put themselves in a very small box by saying that morality is based on a persons own definition. Because of their belief they cannot have a meaningful conversation about morality. Relativism is not a belief thta you can hold on to or be consistent with. You cannot go through life not thinking that something is unfair or that someone did something wrong.