The MAGA crowd might be flummoxed by this one and could even learn from it. It's simply the story of a little boy (no "they", no "presents as,") who likes to wear a skirt, is indignant at anyone's assumption that skirts are for girls, learns from his parents that in many cultures men and boys wear clothes with skirts, and decides to wear his with pride. Lower case for that last word is intentional--there's a potential message here, but it is subtle, and doesn't need to be hammered home!