We will eventually have to change our economic system and adapt one with a much much lower consumption rate, figure ways to limit our population growth, or more than likely both.

Of course. 100% agree with this, even if better technology helps. It will have to be pretty soon.

But in the very short term? This is going to be a disaster, and the human population is shooting itself in the foot by not accepting immigration from extreme birth rate countries (where overpopulation is indeed an issue).