Did you read the whole chapter,the first part is about how much the jews will receive if they obey,an the second is the curses that will come upon them if they don't.
It was a harsh punishment for the jews but look at what happened to them,exactly what it states.
You don't understand what the jews were to God,we are gentiles,thankfully were under the new covenant with jesus.
An hi God is the creator,he can choose what he wants,but dont start getting all high an mighty mate,you support the right to murder innocent babies in the womb,you haven't a leg to stand on