This isn't whataboutism even though it contains the words "what about". Whataboutism is an attempt to excuse one thing because some other bad actor or event wasn't dealt with properly. It's when you try to discredit an argument by implicitly charging them with some sort of hypocritical stance. I'm simply saying Amazon should be next on the list that they investigate. I'm not trying to say that these are bullshit inquires because Amazon hasn't been investigated, which is what a whataboutism on this would be. I'm saying the opposite - that Facebook and Google should be investigated but so should Amazon.

Be aware of what Whataboutism actually is before warning others about logical fallacies or bad-faith arguments.