Isn't it a good thing that the reproductive rate is falling before there is too much contention for resources? If infertility is a growing issue aren't fatilit

Isn't it a good thing that the reproductive rate is falling before there is too much contention for resources? If infertility is a growing issue aren't fatility treatments compounding the problem, by treating the symptoms rather that the cause? Population growth might be good for economic reasons, but it's not sustainable from a environmental perspective.