Finland appears to be a bit of an outlier, in that population could realistically begin to decrease in the next few decades, which isn't the case for most European countries. The population here in the UK is strongly growing.
Globally speaking, the human species has something of a consumption crisis approaching. We consume too much, and at too great a speed; the demand fuels deforestation, habitat destruction, climate change (through overfarming and destruction of CO2-reducing plant coverage), and the extinction of animal species.
This can all be offset by ethical planning, of course. There's no necessity for anti-natalism. But if the population were to decrease a bit-- or just stabilise without huge growth, even (purely through voluntary lifestyle choices), then the human species can easily cope with it. And the burden on the planet's resources would reduce.
It's a personal choice for families to make of course.