What in 2016 specifically would have altered fertility rates?

Women. Dropped. The. Mask.

I don't think anyone back when Obama was President had any clue of the hatred the average woman of "birthing age" had towards men.

The economy was shit before 2016 and the figures were still high. The pandemic only affected 2020 data, but the decline was already prominent, the pandemic merely exacerbated the issue by preventing hook-ups.

There'll be a slight rise in 2021 as normalcy returns, before the downward trend continues.

All the open "kill all men" shit outside of fringe radfem circles and feminist ideology hidden from the general public started in 2016. All the establishment backed hatred of men started in 2016. Before, feminist "people" were hiding, biding their time. They knew they'd get their chance eventually if they kept their agenda hidden.

Trump frightened them, she wasn't supposed to lose. They dropped the mask and used every position they have, and that's the fight we're now in. They won the first major battle, but not yet the war.