"Using the expression "SJW" pretty much signals "I'm a dick" IME."
SJW is a derisory term for the self-righteous, smug and intolerant personalities who attach themselves to some Left Wing political causes. Tom Lehrer wrote a song about them. Look it up.
I suspect you hate the phrase SJW because it's a truthful and accurate description of your personality, too.
This is just a wild guess based purely on intuition... and on your posting history.