Why don't we see more jihadist violence here in the U.S.?

In the U.S. we only have individuals who are jihadist, in Europe there are whole communities that are jihadist because Europeans prevent Muslims in these areas from getting good Jobs. So, people often can only make money from things like Drug dealing as a result in these ghettos in Europe.

So, there are thousands of Muslims who might have been born there that are completely shut out of the system in Europe. We don't have that in the U.S. where many Muslims are well educated and successful like the terrorists in San Bernadino where the man had a college education and a good job in Ecological Science with either the city or the county there. Also, it was mainly his wife who was radicalized before she came to the U.S. and married him. He only shot the man who told him he was going to kill him at the party. His wife shot everyone else. She was just being an opportunist. They both were shot by police within 4 hours after they found them on a street in an SUV.