Take a look at the trend line and React still has a long ways to go to catch Angular:
https://www.google.com/trends/explore#q=reactjs%2C%20angular...
Having stated that I am trying to get up to speed on React in order to make a knowledgeable comparison to Angular 2. I've got friends who are way better JavaScript programmers than I am, ones with VC backed startups built with Angular 1, who are really struggling to learn Angular 2.