Thanks for liking my post! And I was almost doubting if anyone even saw it... ;-)
Yes, the "fair share" is a tricky thing. To me it has this subjective connotation of dependency, as in "What about my fair share? Take care of me!" Of course either extreme misses the actual point, which I think is that life is naturally abundant, so if we adopt a similar attitude to living, creating, and giving, everyone is going to benefit. Then nobody has to be "weeded out" for being unfit, nor do they have demand their share. It'll come naturally.