Whataboutism is absolute poison. Are you actually arguing that we should ignore evil on the basis that prior evil wasn't sufficiently protested? Or are you just trying to score a point for your team? I don't get it.
No, selective interest is absolute poison.
Whataboutism is merely about prioritization.
It allows people to have their pet causes and feel good about themselves while ignoring larger scale evil going on and affecting both their country and the lives of millions.
And it's not like what's suggested is something like "do something about everything bad going on or do nothing" paralysis.
It's like, major major evil affecting hundreds of thousands of lives is going on by your country and you don't give a damn, and suddenly you all jump for a much smaller offense.
Prioritize damnit. You can't largely ignore 10x and cry wolf for 1x. Or you can, and you did, but you shouldn't.
In the 60s they knew how to mass protest for both civil rights, women/gay rights, AND the Vietnam war for example, at the same level of engagement.
What's your end game here? If you want us to go back in time and protest drone strikes more strongly, my understanding is that this is not practical. If you want us to stop caring about Trump's insane actions, I can't understand why. If you want us to care more about more stuff in the future, that makes sense, but it's not the meaning I get from what you write. What are you after?