They are also caused by a lack of exposure, and discussing about it peacefully increases the exposure. I was born in a conservative family, had a very right upbringing. Fortunately, I made up friends with some of the great folks who helped me change my perceptions. If they would have hated me for who I was, I would have been far right. Today, I am proudly far left, a feminist (still evolving), and more. I didn’t love the ad, but don’t hate it either. It is easy to hate each other for being who we are, it is harder but probably right to understand, and help each other.