Some People Sometimes Do Wrong Things. [View all]
That is a true statement. It is, however, not an argument in favor of people doing wrong things. It is also not an argument for the idea that people can do nothing but wrong things. Further, it is not an excuse for doing wrong things. It is not an argument at all. It is simply a statement of fact.
Religions often lay out long lists of things that are wrong to do. They call such things sins. Societies, too, create lists of wrong things, and prohibit doing them. They call those prohibitions laws.
And yet, some people sometimes still do wrong things. They are wrong to do so. They are either violating some religious rule or some law. Those laws and rules are written down to help people know what are wrong things to do.
That some people continue to violate those rules does not mean that people in general do so. The rules exist to help people avoid doing wrong things. Most people follow those rules and laws. A few do not. Those few are not evidence that the rules don't work. They are only evidence that some people will do the wrong things. Some.