The irony of course being that you think whataboutism is when you simply change the topic to an unrelated one (that's what you're implying). When in fact it refers to the act of responding to an accusation with a counter-accusation on the same subject instead of offering an explanation. Which is exactly what you did.

So as it turns out, you're the one who actually doesn't know what whataboutism means, and basically self-reported your ignorance. I wasn't expecting this plot twist - it's laughable given how simple of a concept it is.

But hey, keep digging that hole. Let's see how deep you can go.