"Latinx" is NOT a word. If gender nouns, used in Romanic languages offends you, simply use "Latin" the English non-gender word.
By the way "Hispanic" like Latin is an English word. If you insist on the absurdity of mutilation of a foriegn language and writing in poor Spanglish, you might as well also change Hispanic to "Hispanx" as the Spanish words to describe someone of the Ethnicity in question is "Hispano" or "Hispana", both words I'm sure your editors find revolting. Nonetheless, you should either stick to only English words, or maintain the pattern and vulgarize all Spanish nouns in your English sentences.
a concerned Hispanic