I agree with you on both points, but that is not the argument that I was making. If you need some more context, Here's just one of the many additional comments I left in this thread explaining my position.

FYI, citing the fact that the meme originated in China does not negate how it is used by others after the fact. It's like arguing that when neonazis use the swastika, it's ok because its actual origins are as an ancient religious symbol. The meanings of things can change and be used for reasons other than their original intention.

I'm not saying the meme is racist, I'm saying that it's being used in a racist way here, specifically in the form of Sinophobia.