Yes sir, that will be an unfathomable moment for those left behind.

Like how many plagues of the tribulation, are like those that came upon Egypt.

And how Pharaoh and his armies thought that they were about to destroy Israel in the parted Red Sea,

but charged headlong to their own sudden destruction, so will also the kings of the earth do at Jerusalem.

So, what you described, would it be similar to the howls and cries in Egypt, the night of the passover?

Then, they lost their first born, but what you described, they will lose all the children of the world.