What I normally think of as a breeder is someone who hatches out great numbers of chicks, severly culls the ones that do not meet the "standards" of the breed, and only breeds chickens that come closest to meeting those standards. They continue to improve the breed. It is fairly expensive and takes a lot of hard work, hard decisions, great record keeping, and a study of genetics. From what you posted, I'd think you are doing about what the hatcheries do, selling eggs or chicks that just conform to the general overall approximate appearance of the breed, not maintaining the standards or improving in any way. I would not consider what you are proposing to do as being a breeder.
If you clearly state up front that you are not breeding to standards and advertise your hatching eggs and chicks as for pets or eggs only and not as show quality, I would not consider what you are proposing as unethical. But, in my mind, if you called yourself a breeder without severe culling and breeding to standard, I think that would be unethical.
Just my opinion. Thanks for asking.