After lashing out at critics for highlighting his “sarcastic” tweet that all Muslims should be killed following the Boston Marathon bombings, frequent Fox News guest Erik Rush doubled down on his anti-Muslim rhetoric, calling Islam “wholly incompatible with Western society” and saying America is at war with the religion.

In the wake of the bombings at the Boston Marathon, Rush tweeted, “Everybody do the National Security Ankle Grab! Let's bring more Saudis in without screening them! C'mon!” After another Twitter user criticized Rush for blaming Muslims, Rush responded, “Yes, they're evil. Let's kill them all.” Rush later claimed that the now-deleted tweet was "sarcasm," but in his weekly WorldNetDaily column, Rush lashed out by calling his critics “dhimmis” and smearing Islam as “wholly incompatible with Western society.” Rush went on to claim that America is at war with Islam and that “While killing people is definitely undesireable, that is what war tends to be about” :

It is important that we know the extent to which many of our fellow citizens have been indoctrinated into this suicidal worldview. Despite the interpretations of my words and liberals' tiresome claims that the right is prone to violence, we know that with very few exceptions, violence is the way of the left (as well as Islamists). This also gives rise to curiosity as to what evil deeds large numbers of these dhimmis might be willing to do if properly motivated. As we have seen relative to the Occupy movement, violence -- whether throwing rocks, Molotov cocktails, or engaging in recreational rape -- is a natural progression. In the end, of course, this is just another case of the words of someone on our side (as it were) being manipulated to malign and discredit, whereas our enemies and those on the left - whether in the press, politics, entertainment, or elsewhere - are allowed to say whatever dangerous, irresponsible, malicious, slanderous things they like with impunity. For the record, I still maintain that Islam is, by its nature, wholly incompatible with Western society. I analogize liberalism, which is promoting this dhimmitude, to Stage 3 cancer in America's body politic. For the record: While killing people is definitely undesirable, that is what war tends to be about. And we are at war -- just study the history of Islam, or ask any Islamist.

Rush is a frequent guest on Fox News, where he regularly employs inflammatory rhetoric to attack President Obama, Democrats, and Muslims.