Of course, there can be serious injustices within free societies.

Free societies are societies in which the right of dissent is protected.

In contrast, fear societies are societies in which dissent is banned.

Can someone within that society walk into the town square and say what they want without fear of being punished for his or her views? If so, then that society is a free society. If not, it is a fear society.

When we are unwilling to draw clear moral lines between free societies and fear societies, when we are unwilling to call the former good and the latter evil, we will not be able to advance the cause of peace because peace cannot be disconnected from freedom.

Will dissent be permitted? The answer to that question will determine whether the society is a free society or a fear society.