The ACLU is a terrorist organization which does not use firearms or explosives.
The ACLU and its allies on the Federal Courts have effectively abrogated the Declaration of Independence. They only recognize the Constitution as a founding document and since it does not declare a belief in God, they declare His existence and subsequent governing principles to be outside the realm of American legal discourse.
Without the foundational principles that God is the author of life and laws governing life, then we are left with the legal dictums that the State endows all rights and authors all laws and there are no primordial ontological principles to which it needs to adhere. That is not what the Founders intended.