Why have European Islamic communities generated more terrorists and terrorist attacks than North American Islamic communities or families?

[Ricardolindo]

Why have European Islamic communities generated more terrorists and terrorist attacks than North American Islamic communities or families?

Is it because of different base population sizes to begin with?

More discrimination in Europe to react against?

A different, narrower political Overton Window in North America than Europe, allows an American Muslim to be a bad-ass nonconformist politically discontented rebel without actually doing anything violent?

Dumber European policing?

Lighter European policing?

Higher average socioeconomic status of North American Muslim immigrants compared with Muslim immigrants in Europe?

American capitalism's pace keeps Muslim professionals mostly too busy professionally striving and the Muslim working class too busy surviving to get involved much in political radicalism or terrorism?

The premise is false and more North American Muslims have participated in Islamist terrorism than European Muslims, and more attacks have occurred in North America than Europe?

The most common theory appears to be that Muslims in the United States tend to be from higher socioeconomic backgrounds than Muslims in Europe.

 

[Marduk]

The most common theory appears to be that Muslims in the United States tend to be from higher socioeconomic backgrounds than Muslims in Europe.

Unsurprising, it is was incredibly hard and still is pretty tough for people from MENA to get to USA through anything other than more or less selective legal means.
Meanwhile most of those who got to Europe got there through some sort of less than legal method, and on top of that their number is of a different scale. Germany alone has almost twice as many Muslims as USA.

 

[Ricardolindo]

The most common theory appears to be that Muslims in the United States tend to be from higher socioeconomic backgrounds than Muslims in Europe.

There is also the theory that immigration has always been a part of the history of the United States while it hasn't in Europe, making integration of immigrants easier.