Once you see that, the rest is just details.
True, in terms of understanding that they are a very serious and dangerous threat to the country and our way of life. However, it is of critical importance to know and understand the nature of their movement and their goals, particularly given how much help they're receiving from outsiders such as big corporations, TV and print media, social media, our liberal left dominated school system, film and music industries, pop culture, etc, etc.