You can’t have a definition that is only applicable to you.
This is point I’m trying to make by judging “person” based on race or whatever else that is not as subjective to me as my family. Holding any sort of private definition basically makes every argument null and void. Making definition then defining exceptions is just as bad because it shows definition is unclear and hence anyone can go on an add exception to that definition (such as fertilized egg being declared person). This is very weak subjective argumentation based on “I agree” and “I disagree” instead of basing something on real points, it almost borders relativism and relativism in law or any other logic would mean that I can decide what is true and not (hence I could murder anyone and decide that for me truth is that I did not or that they were not real).