Yes, what has happened up on Washington has been, and is, ridiculous.
However, just to make sure that we don't have people deciding that such lunacy is due to a single group of people, and aimed entirely in one direction, I submit the following regarding threats made to the lives of construction workers in New Orleans by a decidedly not-SJW crowd.
In New Orleans, there were a number of monuments commemorating leaders of the Confederacy and the idea of white supremacy (yes, literally, "white supremacy," read the original inscription here, though it was later altered and then covered). The local government recently decided that they would remove these. And then threats came in from a small, but vocal, neo-Confederate crowd.
The monuments were removed, but only with significant precautions made to protect the workers from the neo-Confederate crazies.
Reports the Courier-Journal:
The workers who removed the Liberty Place monument had to wear masks to hide their identity and bullet-proof vests to hide their vital organs, according to news reports. One report said the workers, who removed the monument in the dead of night, drove trucks that had no license plates.
Reports the Washington Post:
[New Orleans Mayor] Landrieu said that “intimidation and threats by people who don’t want the statues down” prompted him to order the monument removed before sunrise — without prior announcement, by masked workers.
Contractors wore face masks, helmets and what one reporter described at a news conference the next morning as “military-like bulletproof vests.” Landrieu said the workers were disguised for their protection.
(emphasis mine in both quotes)
So yes,
You have crazy SJW types threatening insufficiently-SJW people and forcing college campuses to close.
AND
You have crazy anti-SJW types threatening people in order to protect pro-white supremacy monuments.