People confuse goodness with weakness. It is weak people, not good people (goodness demands strength), who are taken advantage of.
Africans who immigrate to America know how little racism exists there. They suspect it before emigrating from Africa, and they know it after arriving in America. Indeed, America, the Left's depiction of it notwithstanding, is the least racist country in the world.
There is something about liberalism that is not nearly as true about conservatism. The further left one goes, the more one finds that the ideology provides moral cover for a life that is not moral. While many people left of center lead fine personal lives, many do not.
As you get older and wiser you realize that when people are given anything without having to earn it (unless they are physically or mentally utterly incapable of earning anything), they become ungrateful and lazy. They also become less happy.