Social justice extremism: reclaiming an insult used towards people for being highly socially leftist as a positive term. Verily she wants to instate a leftist tyranny where cishets are put to the sword. And surely "shaming critics" is the only reason anyone could have for reclaiming an insultive term, which is why people who self-identify as "queer" are doing it just to oppress the heteros. /s
Seriously though, your premise of "people who want to reclaim SJW are the real reason SJW is so misused" is easily rejectable because 1) you base it on one (1) person allegedly reclaiming "social justice warrior" to "make the critics look bad" 2) you don't even give a proper source of this heinous act of cisheterophobic propaganda. I googled "Laurie Penny SJW" and only got sources like Ralph Retort and Roosh V's website, which 1) are biased to the extreme 2) I will not be dignifying with traffic.
But this isn't about that, my mistake. This is about how calling supporters of racists being president racist people, because they do actively racist things, apparently became an unreasonable thing to say at some point? Because something something Trump did marginally better with latinos than some other cockhole?