You are incorrect. Anarchists believe that there should be no government at all, and Libertarians believe that if there should be a government, it has absolutely no rights to violate peoples rights without direct consent, because Libertarians also believe that if you want to create a cult or smt you have every right too, cause then you can just kick people out if they don't follow the rules. Libertarians believe that the government shouldn't violate anyone's rights without direct consent, and any "governments" that don't do this might as well be called smt else because our idea of governments more than crosses the line.