The problem in the west is not a growing population, but a decreasing one.
> The max population of the earth is debatable, but the fact that there is a limit is not.
Yes, but here we are talking about the US population of $327 million decreasing. The population on earth is 7.53 billion and it is growing elsewhere. Are you arguing that a reduction of the US population serves some larger purpose so we should not be concerned about our culture?
> As far as fewer inventions, why focus on giving everyone a good education? Then we would have more than enough people to give us the technology needed to survive.
I'll focus on higher education since in the US other levels are both free and mandatory.
Access to personal growth opportunities is very important. However, data indicate universities are often not the answer to that and it is also questionable if universities makes someone more creative . Regardless 60% and increasing of the US population has taken some college.
In addition to this it is worthwhile considering what the less creative people are taught to follow in universities. Universities seem to be the center of our cultural decay and an anti-intellectual attitude of not teaching core ideas have taken hold in many schools.
Why do you think higher education would help create more innovation?