Imagine being a non-Jew knowing non-Jews who hate Jews made up the term antisemitism to describe hating Jews and non-Jews universally used it making it the only term that can practically be used to describe hating Jews and then blaming the Jews you hate because they use it too.
Of course, this was also a response to someone complaining that Jews aren't the only semites. Yes, that old canard.
You really can't make up caricatures like this.
They have to happen in the wild to be this fucking spectacularly stupid.