Like antisemitism, its overuse has rendered it toothless.
"Putin's apologist" as a smear on those who reject the mainstream narrative about Ukraine war (even if highly critical of Russia/Putin) is a better match.
Factually false. It's a logical fallacy, because you're attempting to manipulate the audience without actually responding to the claim.
> Like antisemitism, its overuse has rendered it toothless.
Also factually false. "Antisemitism" has no agreed-upon definition. "Whataboutism" has a very concrete and well agreed-upon definition: deflecting a an argument by responding with a counter-accusation that is intended to mirror the perceived accusation.
Your whole comment as manipulative, though, so it's not surprising that you would get the definition wrong.