Captain Karen
"Karen" is often used colloquially to describe someone who exhibits entitled and demanding behavior, often unreasonably or aggressively. In this meme, the idea is humorously extended to Captain Marvel, portrayed by Brie Larson.
The meme suggests that Captain Marvel could be perceived as the "Cosmic Karen" of the Marvel Cinematic Universe due to her formidable powers and determination. It's worth noting that this meme is intended for humor and does not reflect any real negative opinions about Brie Larson or her character.