Good thing I see both as adversaries.
First, I don't see freedom of speech lasting very long without the other. Second, I don't see politicians most likely to support "social justice" as great defenders of free speech. On the contrary, they're typically quite opposed to it.
American Colonists, at the outbreak of the Revolutionary War, didn't need to go down to their local general store to pick up a musket. They already had them in their possession. What inspired them to take up arms, was the words of a few enlightened individuals, men who understood the concept of rights. Had we not been fortunate to have some of the greatest minds of enlightenment in the colonies, no one would have ever recognized the abuses they were subject too. And they would have happily continued to comply.... with their rifles safely above their fireplaces.
History is full of such instances. The passing of ideas is the bedrock of revolution, not weapons. This has been seen in Poland, Germany, India, The Baltics, and in the United States - numerous times. And the instances where violent means have been used, more often than not, the replacing regime is just as tyrannical.