Shrinking populations - are you worried about it?

For many years the neo malthusians like Paul Ehrlich have been sounding the doomsday alarm about overpopulation, but if trends continue it seems we may have the opposite problem.

https://www.youtube.com/watch?v=9GarNrJklUw

I'm with that Jonathan Last guy, I think it's an issue to deal with going forward. Some countries already have ultra low fertility rates like Japan, and that basically leads to an inverted pyramid where there are more older people than younger people resulting in a smaller working population to support a larger ageing population...

It just seems like a bad thing over all. And I don't expect us to take THIS guys advice to "make babies"

https://www.youtube.com/watch?v=0af-RiRDoGk

But maybe none of this is compelling to you all and you think a population decline is a good thing.