You're misusing "whataboutism", you should drop that from your rotation.

We're not limited to one point of discussion here, etc.

Primus~ "He's a murderer, how dare he murder Bob!"

Secundus~ "That's because Bob killed his entire family!"

Primus~ "Whataboutism!"

Secundus~ "You win the debate, I am wrong, I'm sorry."

https://en.wikipedia.org/wiki/Whataboutism

I know you've heard the term many times and are excited to join in... but don't.