"Under those circumstances you would find that most people would naturally choose to have smaller families, to accumulate less unnecessary stuff, and to generally rise to a higher level of awareness."

my considered response: "piffle!"..or maybe, "pooh!"

I have NO objection to "..a society that is loving and compassionate enough that everyone has a decent level of material life,..." , but not only is that not on the horizon, I'd be willing to bet a nickle that it would have negligable effect on breeding habits. Maybe a little, but not enough.

It makes no difference anyway, because unless the population is reduced first, that happy society is only a pipe dream in the heads of lucky folks like you who have opted out of the mainstream.

On this point I may get to say "I told you so", as I 'could' live another 30-40 years, and in that time the population will have grown until, without intervention, either voluntary or imposed, not even your quiet lifestyle will be safe. 6 billion will be 10-12 billion by then....

(no, I do NOT enjoy being a pessimist)