NYT and WaPo use of "accusatory words" skyrockets starting in 2010, near-perfect correlation

The graphic below shows how often the liberal/Democrat flagship papers, NY Times and Washington Post, used "accusatory terms" like "homophobic" or "transphobic" since 1970.  Anyone see a pattern?  (You should be able to enlarge by clicking on the image.)

Accusatory words are designed to elicit feelings of guilt in some listeners who aren't members of the group being defended.  Wow, huge increases starting in 2010.  Now why do ya suppose...?

Now note that "correlation coefficient" between the usage in the Times vs. the Post: A zero would be no relation between the two, while a one is they're always on the same page.  A 0.97 is really, really high.  You'd only expect that if they were taking orders from the same source, or if all the writers and editors had exactly the same outlook.  Hmmm...