If you had to choose a theocracy to live in which would you prefer? Personally, Islam would always be my least desirable option.
I understand that none of us would prefer to be forced to live under and submit to the ideology chosen by another person; we want that "none of the above" option. This question isn't about that though. This question is intended to force you to consider which religion is the most dangerous, the most detrimental.
American atheists seem to be generally ignorant about Islam and it's increasing threat, not only to freedom from religion, but to freedom of any kind. This is evident by the relative lack of discussion about Islam on the Atheist Nexus. If you are ignorant (which is no bad thing unless it is intentional) then I urge you to research the Islamization of Europe and the state of affairs in Islamic countries in Africa, the Middle East, and around the world. Below are a few resources which will hopefully inspire/incense you into doing this.
Sharmeen Obaid Chinoy: Inside a school for suicide bombers
Pat Condell on Islam
Pat Condell on the ground zero Mosque
I don't necessarily argue that we should be using the cold-war era tactic of buttressing the position of the church in the home and in the government. I do strongly argue that we should identify the greatest threat to our freedom and we should not simply speak up about it but act, with hostility if necessary, against any threats to our freedom. Islam respects nothing but force and if we continue to allow it to make inroads in positions of power and culturally then we will be left with absolutely no recourse but violence. Act now if you prefer a non-violent solution because there may come a day when that option no longer exists.