>Do you really think that people living in metros are bankrolling indiscriminate terrorist attacks against themselves?

That’s not necessarily contradictory. A different example is drug related gang violence. Money from drugs can be traced and consequential and resulting in gang violence, but obviously a given gangster isn’t going to fund a shootout targeting her or him, but obviously other targets, but in the end in aggregate can result in violence for all gangsters (and many bystanders).