Read "Civil War 2". You'll understand.
(I say mostly joking since I know you're referring to the MCU specifically... but man, it makes it tough for me to like the character)
I don't dislike Captain Marvel. Like you said, I'm only familiar with the MCU version of the character. As for Iron Man . . . I grew to loathe him. And his death did not erase my dislike of him. But my only knowledge of Captain Marvel is from the movie, so . . . I have no problems with her.