It certainly does highlight the pervasive nature of nationalistic fervor, which often clouds people's judgment and prevents them from seeing things clearly. When it comes to international relations, objectivity and a willingness to acknowledge the truth, even if it goes against one's preconceived notions or desired outcomes, is essential for making informed decisions and achieving success. In US, as you pointed out, this is often lacking in many quarters, leading to misguided policies and ultimately to self harm.