They certainly haven’t infested every branch of American government or life that many of the Islamophobes claim. I found this excerpt revealing
It has become accepted wisdom in some circles that the Muslim Brotherhood is a force for progressive change, even democracy, in Egypt. Since the mid-1980s when the Brotherhood entered electoral politics in a coalition with the allegedly liberal Wafd party, its leaders have embraced the rhetoric of political reform. On the eve of the 1990 parliamentary elections, the Brotherhood’s then Supreme Guide Mohamed Abul Nasr penned an open letter to President Mubarak in which he boldly stated, “Freedom is dear and it is preferable for you to avoid your nation’s anger and riots. It cannot be imagined that any people will remain under subjugation and repression after hearing and witnessing surrounding nations achieve their freedom and dignity…A nation’s power is derived not from material power, but from the entire citizenry’s liberty, the people’s trust in the government, and the government’s trust in the people.” Those are reassuring (and prescient) words–even 22 years after the fact–but the Brothers have always been rather fuzzy about what democracy means to them, falling back on the concept of shura or “consultation,” which could or could not be the foundation of Egyptian democracy. They have also been vague about shari’a. While Morsi and Brotherhood big wallas have said that they will implement Islamic law, members of the Brotherhood’s Freedom and Justice Party told the American foreign policy establishment during a visit in March that they support “the principles of shari’a, but not necessarily its particular legal rulings.” I guess that sounds fine to the uninitiated, but the statement amounts to nothing more than obfuscation.
It is entirely possible that the Brothers are democrats despite themselves. Here is the theory: Hammered as they are between the military, which still controls the guns, and other political forces including revolutionaries who mistrust the Islamists and thus can stir up trouble, the Brotherhood could determine that their only source of power is through the ballot box. As a result, the Brothers will seek regularly scheduled, free and fair elections as the only way to legitimate their power. In time, this will transform the Brothers into committed democrats. Never mind (cliché warning) that elections don’t make democracy, but this is roughly what happened in Europe and how theocratic parties of the 19th century became today’s Christian Democrats. There are many insights to be gleaned from Europe’s experiences, but it is important to remember that history can be a guide, but it is not a blueprint.
In the end, the intellectually honest answer about the Brothers’ commitment to democracy is, we just don’t know. It’s an empirical question. Let’s pay less attention to what they say and focus on what they are doing.
The last line is especially insightful and mature given the topic at hand.