In plain hits whataboutism beats whataboutery 810,000 to 119,000.
Frankly, I’ve never seen whataboutery in use, though obviously some people use it. Both terms are at least 20 years old, and whataboutism is used on the Dope regularly, even as a thread topic.
The poor baby has been kicked to death. Can’t we stick with the straightforward “hypocrisy” since that covers far more of what the right does?