I like social justice in theory. It seems like it's a good place to stand. To fight for equality, to end discrimination and to speak for the "voiceless." All sounds very noble. On paper.
I guess it depends on how far you take that particular line of reasoning.
For example campaigning for human rights in some squalid country somewhere might make you technically an SJW. I don't know how many people in the West or anywhere else would raise a concern for this particular fight or aspect of the "cause." They'd most likely applaud such an effort.
But I think the real trouble comes with the younger, more rabid subsection. The more naive fresh faced idealistic "SJWs" who are so caught up in meting out justice to those they deem the "oppressors" that they themselves become the monster. So to speak.
I'm talking about the extremists here. The classes whining about needing a "safe space" and "trigger warnings" about literally everything and just generally spoilt brats who think the world needs to accommodate their particular sensitivities. Short of protection/prevention measures from bullying, I don't think it owes anyone that.
The people getting offended at Cards Against Humanity or lamenting about the lack of female butt coverage vs the "extreme level" of male butt coverage in video games. (No seriously, that was the latest video in the Tropes vs Women series from FemFreq. Which was riddled with inaccuracies either way. And people wonder why Anita gets flack in the gaming community. Geez.)
They use terms like "racist" and "sexist" to shut down their opponents, see Laci Green or Jonathan Macintosh. Well their supporters, rather. Even going so far as to label mixed race people of using their inherent "white privilege" to denounce their experiences as "invalid to the conversation." To women like myself they use terms like "internalized sexism" if I dare to even question their rhetoric. The "SJWs" that I have encountered both online and IRL are hypocritical racist and/or sexist ******** who use mental gymnastics to justify why bashing a man is not sexist or why excluding white people from an event doesn't make them racist. (The "Baha Mustafa incident.")
Oh and the "oppression Olympics." Good god, it seems to me almost fashionable to exclude their gay/bi brethren from social justice. But they're not homophobic, it's the disadvantaged that these people are really looking out for. Provided such disadvantaged people are not white and/or men (bonus points for non white women.)
I have many antidotes about being verbally abused by so called "SJWs" who, by the way, often wear the label proudly. Myself, a half Indian woman has been called racist, sexist, homophobic and victim blaming rape apologist. For simply espousing the view that people should be judged by the merit of their actions and pointing out the difference between the Clinical definition of a Pedophile vs the vernacular usage. I have even been called a MRA, which I am actually not that familiar with ironically enough, for trying to defend some poor guy on a forum about the supposed inherent sexism in video games.
Now such "evidence" is clearly unable to stand up to academic scrutiny. So I will not claim that this is the typical behavior of an "SJW." But I will say that it certainly has not helped my viewpoint of the average "SJW."
Now I don't know if you would engage in such behavior. I don't think you do. But that's just my experience.
Sorry for the rant by the way.