Those who have a goal, a vision, have tendency to anger; Those who do not have a vision or a goal, have no need for anger, even if their anger may seem louder, for whatever might seem like anger out of them are trivial, childish, attributing to immature goals and idiotic visions, such as striving for how one should respect customs of cultures, how many friends they should have, etc. which aren't really goals or visions, when investigated further.
Now that is not to say that having goals or visions mean they are on the right path, with the right minds, goals and visions. Be it an improper goal or erred vision, they, unlike those without visions or goals, at least are willing to sacrifice their lives for their goals and visions. They don't put their minds to how they should be treated and other time wasting part of general social norms. What they care about, are usually connect to the bigger picture; while the discriminated class do not, even though they sometimes pretend that they do - only to achieve their selfish means.
But it is enough here to know, that we can detect those without goals or visions. It is profitable for us not to associate with these, as much as they love or even claim to be associated with us.