“Whataboutism”, or if you are unfamiliar with the term:
“The act or practice of responding to an accusation of wrongdoing by claiming that an offense committed by another is similar or worse”
People that use this mechanism are “poorly educated” and unable to hold a conversation and they should just be mocked by whatabouting even harder, so they can maybe understand that they’re dumb and that’s not how you should debate.
Example of the last argument I had recently with my dumb c*nt father:
Me: You shouldn’t idolize that politician, he evaded literally billions in taxes and that befalls on citizens like you
Dumb cnt father:* Yeah? And what about that other politician?