What does Deuteronomy 28:52 mean?

Yahweh will bring a nation against you from far, from the end of the earth, as the eagle flies; a nation whose language you will not understand;

a nation of fierce facial expressions, that doesn’t respect the elderly, nor show favor to the young,

and they will eat the fruit of your livestock, and the fruit of your ground, until you are destroyed. They also won’t leave you grain, new wine, or oil, the increase of your livestock, or the young of your flock, until they have caused you to perish.

You will eat the fruit of your own body, the flesh of your sons and of your daughters, whom Yahweh your God has given you, in the siege and in the distress with which your enemies will distress you.

The man who is tender among you, and very delicate, his eye will be evil toward his brother, toward the wife whom he loves, and toward the remnant of his children whom he has remaining;

so that he will not give to any of them of the flesh of his children whom he will eat, because he has nothing left to him, in the siege and in the distress with which your enemy will distress you in all your gates.