G-d issued no curses. And the Jewish people have been subjected to horrific antisemitism, largely due to the hostile things said in the NT. Look at how much disdain YOU have for Jews, for instance.So, God himself is an antisemite? He issued the curses.
Do you think the Jewish people as a whole have been blessed, or cursed over the centuries?
Thankfully, HaShem has blessed this small little tribe with not only survival - but with success and achievement.