Certain activities create and sustain life as we know it, other activities destroy and erode life as we know it. Whatever someone says or passes a law about these activities, doesn't change them. Whether a society says its ok to or legalizes killing or opposes killing, killing still kills. The same for other eternal truths. What a benefit to future generations if we were willing to continue and foster discussions about eternal truths.
Babies dealing with moms and dads have very limited perspectives and communication abilities.
As siblings, peers, neighbors, associates and societies come into play, those babes have to grow in perspective and communication abilities to continue to thrive, and sometimes survive. Answering Marcia directly, I have no right to impose my beliefs on others. I have a right to make decisions about my reactions to other people who are threatening my life whether they see the threat or not and whether some else says it's okay for them to threaten my life. My best shot, longterm, is to model my life according to eternal truths because if they are truths, they will be recognized and I will have less to fear from most people because they also see that we hurt ourselves by hurting others. My greatest threat will be from those who manipulate and distort truth and who can see that the adoption of truth by more people is eroding the manipulation opportunities.