Well, Carol likely has the current greatest amount of Plot-Induced Stupidity (The writer is completely on your side no matter what, due to a misguided form of political correctness) in Marvel Comics. Hence, she can basically beat up anybody, due to "Grrrrl Powah! Rawr!", and fear of the social campaigning of the Carol Corps. Skyfather Thor, who has two explicit feats of a fully multiversal scale, Genis-Vel, who literally destroyed the entire multiverse, including multiversal Eternity, once, anybody, despite that I think that Carol's greatest upper limit explicit feats are Star level at best.
She also gets away with horrible moral transgressions (For example, locking up lots of people without a trial for crimes they haven't committed yet, and murdering Iron Man without the slightest apology or sense of remorse afterwards, despite that he had gone to great lengths to help her recover from her alcoholism previously), and generally being a callous jerk, while still somehow being perceived as a good guy. Not nearly to a Krakoa era X-Men level, as they have been depicted as amoral, gladiatorial blood games for entertainment, supremacists, who causally pal around with and are ruled by some people who are morally fully comparable with Mao, Hitler, and Stalin (Apocalypse, Mister Sinister, Mystique, Sebastian Shaw, and Exodus, for example), and Magneto (who is an ends justifies the means supremacist terrorist) and the White Queen (who is an absolutely conceited sadistic and elitistic serial-rapist) and similarly immoral characters were mainstays in their team long before that, but nevertheless.
As such, I am not sure what we should do with Carol in terms of tiering. She has basically turned into what Squirrel Girl used to be, except that Squirrel Girl was intended to be a parody of plot-induced stupidity, and she was actually likeable and funny.
Mind you, I am all in favour of girl power, as women have been treated absolutely horribly all across this world throughout history, and they still are in quite a lot of countries, despite that they are usually considerably nicer than men, but I do not think that Carol has usually been portrayed as a good example of it, but rather as a callous, hollow, and boring self-righteous authoritarian thug.
And it is kind of hard to empathise with the X-Men as good guys anymore, since they have systematically dismantled and undermined the inherent value of the genuinely heroic ideal to such an enormous degree over the years.
