Prejudice Leading to War?

On whether prejudice may lead to it depends on what kind of prejudice is present. If it was gender prejudice, I do not think a war would happen because there are no country supporting solely women or any country supporting solely men. Therefore if a war would happen, it would be the people of the same country fighting one another, or when it comes to the worse case scenario the world would be split into two parts, one for women one for men. This is not likely to happen because love exists between most men and women and gender prejudice is sometimes only seen as a friendly joke, therefore would less likely advance to a war.
On the other hand if it was race prejudice, it may lead to war. There are many specific races in many different countries, therefore if one race were to enrage the other race, the whole country might be unhappy and thus start a war. Race unlike gender prejudice cannot be changed. For gender prejudice, there is a chance to change the mindset of the opposite gender by proving them wrong. But for race, a person is born to have a race and it cannot be changed. Therefore, racial prejudice is much likely to spark a war.