Thanks for the explanation about Latinx. I doubt if it will catch on. For one thing, x already means something else, so why should we all have to learn that it now means "gender unspecified"? For another thing, it sounds like something you use to clean the bathroom.
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I was just on YouTube, finally seeing who Lada Gaga is, when I came across this song by Weird Al Yankovic about grammar and usage. Everybody here would probably enjoy it.

grammar song