That statement is just as ridiculous as, "They hate us for our freedoms", uttered by the dope Bush.
No, they hate America because they are satanic.
This begins at a very personal level. Pride is the original sin. Pride is easily shamed. Some people behave well; some behave badly. Some work hard; some are lazy. Some students strive to excel; others are shirkers. Some people are sexually responsible; others are not.
One of the most fundamental moral choices all of us make is our reaction to our failings being exposed by the superior performance of someone else. Do we admire and applaud the excellence of others? Do we admit our failings, buckle up, and strive to do better? Or do we feel shamed, resent the other person for showing us up, make endless excuses, try to cover up our own failings and relentlessly attempt to tear down the other guy, and even attack the very concept of standards and merit? The second reaction is the high road to leftism. Prager makes that point endlessly in his talks and videos. Leftism is rooted in a fundamental moral defect. That's why, ultimately, we are engaged in a religious war.