Hussain Osman, one of the men alleged to have participated in London’s failed bombings on July 21, recently told Italian investigators that they prepared for the attacks by watching “films on the war in Iraq,” La Repubblica reported. “Especially those where women and children were being killed and exterminated by British and American soldiers…of widows, mothers and daughters that cry.”

It has become an article of faith that Britain was vulnerable to terror because of its politically correct antiracism. Yet Osman’s comments suggest that what propelled at least some of the bombers was rage at what they saw as extreme racism. And what else can we call the belief–so prevalent we barely notice it–that American and European lives are worth more than the lives of Arabs and Muslims, so much more that their deaths in Iraq are not even counted?

It’s not the first time that this kind of raw inequality has bred extremism. Sayyid Qutb, the Egyptian writer generally viewed as the intellectual architect of radical political Islam, had his ideological epiphany while studying in the United States. The puritanical scholar was shocked by Colorado’s licentious women, it’s true, but more significant was Qutb’s encounter with what he later described as America’s “evil and fanatic racial discrimination.” By coincidence, Qutb arrived in the United States in 1948, the year of the creation of the State of Israel. He witnessed an America blind to the thousands of Palestinians being made permanent refugees by the Zionist project. For Qutb, it wasn’t politics, it was an assault on his identity: Clearly Americans believed that Arab lives were worth far less than those of European Jews. According to Yvonne Haddad, a professor of history at Georgetown University, this experience “left Qutb with a bitterness he was never able to shake.”

When Qutb returned to Egypt he joined the Muslim Brotherhood, leading to his next life-changing event: He was arrested, severely tortured and convicted of antigovernment conspiracy in an absurd show trial. Qutb’s political theory was profoundly shaped by torture. Not only did he regard his torturers as sub-human, he stretched that categorization to include the entire state that ordered this brutality, including the practicing Muslims who passively lent their support to Nasser’s regime.

Qutb’s vast category of subhumans allowed his disciples to justify the killing of “infidels”–now practically everyone–in the name of Islam. A movement for an Islamic state was transformed into a violent ideology that would lay the intellectual groundwork for Al Qaeda. In other words, so-called Islamist terrorism was “home grown” in the West long before the July 7 attacks–from its inception it was the quintessentially modern progeny of Colorado’s casual racism and Cairo’s concentration camps.

Why is it worth digging up this history now? Because the twin sparks that ignited Qutb’s world-changing rage are currently being doused with gasoline: Arabs and Muslims are being debased in torture chambers around the world and their deaths are being discounted in simultaneous colonial wars, at the same time that graphic digital evidence of these losses and humiliations is available to anyone with a computer. And once again, this lethal cocktail of racism and torture is burning through the veins of angry young men. As Qutb’s past and Osman’s present reveal, it’s not our tolerance for multiculturalism that fuels terrorism; it’s our tolerance for the barbarism committed in our name.

Into this explosive environment has stepped Tony Blair, determined to sell two of the main causes of terror as its cure. He intends to deport more Muslims to countries where they will likely face torture. And he will keep fighting wars in which soldiers don’t know the names of the towns they are leveling. (According to an August 5 Knight Ridder report, a Marine sergeant in Iraq recently pumped up his squad by telling them that “these will be the good old days, when you brought…death and destruction to–what the fuck is this place called?” Someone piped in helpfully, “Haqlaniyah.”)

Meanwhile, in Britain, there is no shortage of the “evil and fanatic racial discrimination” that Qutb denounced. “Of course too there have been isolated and unacceptable acts of a racial or religious hatred,” Blair said before unveiling his terror-fighting plan. “But they have been isolated.” Isolated? The Islamic Human Rights Commission received 320 complaints of racist attacks in the wake of the bombings; the Monitoring Group has received eighty-three emergency calls; Scotland Yard says hate crimes are up 600 percent from this time last year. Not that pre-July 7 was anything to brag about: “One in five of Britain’s ethnic minority voters say that they considered leaving Britain because of racial intolerance,” according to a Guardian poll in March.

This last statistic shows that the brand of multiculturalism practiced in Britain (and France, Germany, Canada…) has little to do with genuine equality. It is instead a Faustian bargain, struck between vote-seeking politicians and self-appointed community leaders, one that keeps ethnic minorities tucked away in state-funded peripheral ghettos while the centers of public life remain largely unaffected by the seismic shifts in the national ethnic makeup. Nothing exposes the shallowness of this alleged tolerance more than the speed with which Muslim communities are now being told to “get out” (to quote Tory MP Gerald Howarth) in the name of core national values.

The real problem is not too much multiculturalism but too little. If the diversity now ghettoized on the margins of Western societies–geographically and psychologically–were truly allowed to migrate to the centers, it might infuse public life in the West with a powerful new humanism. If we had deeply multi-ethnic societies, rather than shallow multicultural ones, it would be much more difficult for politicians to sign deportation orders sending Algerian asylum-seekers to torture, or to wage wars in which only the invaders’ dead are counted. A society that truly lived its values of equality and human rights, at home and abroad, would have another benefit too. It would rob terrorists of what has always been their greatest recruitment tool: our racism.