In an article from Mashable, we learn that the cause of this boycott movement (or rather its taking to scale these days), it is the decision of Uber New York off the rate increase at JFK airport during a strike by the services of the (other) taxis which had been organized in protest against the "Muslim Ban" (ban of entry into the United States of some Muslim citizens by Donald Trump).
Surge pricing has been turned off at #JFK Airport. This may result in longer wait times. Please be patient.
-Uber NYC (@Uber_NYC) January 29, 2017
Uber has therefore been accused of being a "scab" actively supporting racism and xenophobia.
This popular revolt is also the result of comments made by the CEO of Uber, Travis Kalanick, who said in front of his employees it is necessary to work with Trump to fulfill the mission of Uber improve global transport.
Of course, uber replied by saying that they had no intention to break a strike. However, many users have tweeted their screenshot of their Uber account deletion:
-Kate Berg (@katebergie) January 29, 2017
The activity of the hashtag #DeleteUber currently: