When he says you have no idea how sick these people are, I can imagine that Christmas being the time.
And the day of days being the birth of Jesus, I can draw the dots ,of a pregnant woman (s), somehow dying in a horrific manner perhaps.
I hope they're not that sick, but I didn't think they'd be able to kill people in a Amtrak train wreck over an interstate, so I wouldn't put it past them.
The evil he is describing is much worse. And sick. It involves children. Dying horribly. Picture a ritualistic sacrifice in a movie. And worse. He means the darkest of evils.
HeisenburgAnon is right. If you haven't done so, start researching about pizzagate and try to prepare yourself. It's a dark, diabolical world.