I may be an "idea racist" so to speak. I think some memeplexes are simply better than others in survivability terms, and destined to rule other memeplexes. They may not also be more "true" though This position of course combines the worst of solipsism, relativism, and absolutism
I specifically avoid valuative words like "better." Do cultures that embody some memeplexes outsurvive others? Yes. Is that a good/bad thing? That's for every individual to decide on their own.