This subthread is an aside on the term "Latinx" in general, outside the context of this article. I'm specifically responding to the meme described by the GP, which ostensibly was not created in response to this article but to address general usage of the term "Latinx".
It sometimes refers to people who happen to be immigrants, but it's not often used in the context of a discussion involving immigration. Broadly, it refers to people and culture originating in Latin America. Many people use it to self-identify.
