Fundamentalists would gladly return to a time when genocide was not only acceptable - it was God's command. When torturing and murdering your enemies was normal - as long as you're sure to claim God is on you side. When a woman was just chattel who did not even have the right to control her own reproduction - just like livestock. When your worth as a person was founded upon your caste. When your race, your religion, your national origin, your sex, your disability, or your sexual orientation, could make you less of a person. When your status as a 'sinner' is only limited by the prejudices of those with power.
In the Fundamentalist worldview, your worth is never any greater than it is at your birth (both in a eugenic sense, from the twisted values resulting from their struggle to control the reproduction of others, and in that your birth may be the sum of your social identity), unless, of course, you become one of the elect - one of them. This is a profoundly anti-American view of the world. It treats with contempt the public virtues we hold sacred, the rule of civil law, the freedom of conscience and belief, the equality of all people, and the inherent dignity and rights of every human being.
There is a moral component to the political struggle between Conservative and Liberal views of the world, and it is the same as that between Fundamentalism and Jesus.