Contrary to the belief of whataboutists everywhere, it is actually possible to be concerned about more than one thing at a time.
Why is exposing double standards and hypocrisies via a relevant example not a valid form of argumentation?
You want to fix Facebook; well, what about Google? You want to fix Google; what about Facebook?
It sometimes can be difficult to distinguish when someone is using another example to excuse the primary subject with whataboutism or to make a sincere inquiry into why such a disparity exists.
Of course, sometimes it's easy to tell what people are doing.