'Til they come up with solutions, Social Justice'll never be a religion. And they won't, since all solutions lead to problematic outcomes.
The solutions don't need to actually work. When more moderate muslims discover their son is gay, instead of throwing him off a rooftop, they sometimes send him to an imam to purge the devil out of him. Christians have their conversion camps. They may offer solutions, but the solutions don't work.
Scientology, when you're enough of an insider to be receive more secret truths... and you don't believe them, they tell you: "It's okay if you don't believe them, but you have to act like you do"
Of course social justice will fail inevitably; much like modern christianity or islam fail inevitably. You can't build a religion when you oppose truth. Islam and Christianity were built when there were no obvious holes in the truth they told. However, evolution more than anything has pierced that mirage. Too much scripture has to be abandoned to be able to unite christianity with truth.
The same holds true for social justice. Of course social justice like christianity is a whole host of different ideas and the lack of a holy book allows it to off-load responsibility for some of its claims, but some of the central, commonly held, long championed ones are the very root of its downfall: Clamping to the the idea that everything is socialization, that we are tabula rasa formed purely by the way we are raised; that anyone can be "re-educated", which is not such a nice term if you've looked read about the practices of communist re-education camps, which are built on a similar understanding. They too get to the scientology position; you have to act like you believe.
I think one of the reasons social justice warriors are so spastic is that their very own being revolts against what they at some level know to be untruths; so they overcompensate, like many of the male sjw types being convicted of sexual offences, similar to the image of the virulantly anti-gay priest.
Social justice is poised to be in a state of permanent resolution, to be permanently opposed to those who seek to build order and bring justice, as social justice, by it's definition and practice, is opposed to justice.
All solutions in social justice are utopian and unreachable and thus a constant demand for change is achieved. Though this is really not different from other religions, as the demands of any other religion can not be perfectly fulfilled either, even if it's your life goal with all your energy and passion poured towards it.