Yes. Selectively demonstrating a ridiculous amount of outrage at the hate target of the day is absurd. The fact that you couldn't possibly do it in every similar situation shows why it is absurd.
Very Kantian. But there are other things for which the argument is successful. Take feeding a starving man, for instance. You cannot feed them all. That's absurd. Therefore, it is also absurd that you can feed the man starving in front of you.
That argument follows the same structure.
For what it's worth, I'm not talking about Ms. Rice here. It's the argument that bothers me. Seems shaky.
If I wasn't selective in what, when and how I choose to protest my only options would be a) not give a shit, ever, or b) not leave my house and possibly kill myself.
Some of us live in the real world where we have to pick our battles.
That argument follows the same structure.
For what it's worth, I'm not talking about Ms. Rice here. It's the argument that bothers me. Seems shaky.