One other thing. Just because I own fewer resources than someone else, doesn't mean that I "lose". I mean, you can arbitrarily define it that way, but in practice, I only need enough resources to sustain a certain quality of life. So, while universe may be finite wrt resources in theory, the actual number is so big that it may well be treated as infinite for all practical purposes, provided that we don't have unbounded population growth.
Sure, but society can prevent you from hogging too much for yourself (via taxes etc), so long as it's not 100% laissez-faire, and not just the rich have political rights.
No, but I don't see the "designer baby" tech as something that radically changes the nature of the problem (which already exists, and has existed for a long time), either. Basically, insofar as status quo is tolerable, this doesn't move the needle enough to care.
The other thing is, coming from a "well, something must be done about it" perspective, fixing these aspects of human society strikes me as the least intrusive and harmful side-effect-free approach, compared to all the other alternatives (which are mostly about tightly regulating the tech and its use). Heavy handed regulation, in particular, will just produce a black market with no regulation at all, which is likely to result in more problems in the end.
Not society. The universe. Ressource ownership is exclusive. If I own something, no one else can own the very same thing at the same time.