And bcoz they r uneducated, they r jobless or do sundry jobs & remain in poor strata of society. Then the mullas brainwash them that they r isolated by the majority community. That they r discriminated against. That is how thieves, loafers, goondas and terrorists r developed. And these rascals enjoy the sympathy of the elders and the mullas.
A Hindu or a Christian will seldom listen to a pandit or a father other than for the religious puja. But the Mulla, although himself uneducated and backward, is given a special status in Muslim society. So he toys with their feeling.