Besides, it's silly to pretend that there is no morality taught by large groups of people, because obviously churches, synagogues, and mosques teach and promote their own brands of morality and ethics. So do atheistic writers on societal issues: many atheists take morality very seriously, and promote their own brands thereof. If you commit an egregious criminal offense, your judge is very likely to condemn your behavior as "immoral" at your sentencing.
To the point, this whole discussion started because you were demanding that morality (which means considerations of right and wrong) should never affect legislation, but only ethics (by which you mean the applied study of, wait for it... right and wrong). If you want to define words so as to exclude "morality" from legislation, you are free to do so, but don't expect others to speak in that way 100% of the time. Based on ordinary dictionary definitions, there's no compelling reason to.