There is no reason I should avoid the words "ethics", "morality", etc, in a discussion of ethics, morality, etc. It is in fact, an unreasonable request on your part.

I am also unpersuaded that I need to be a "reductionist" on the topic. The material on reductionism on this site seems to me a charter for coming up with pseudo-solutions that just sweep the problems under the rug.

My substantive point remains that you have not made a case for eliminating ethics in favour of preferences.